From 9d67187dbd93df98011f7229f76de25d142b57cc Mon Sep 17 00:00:00 2001
From: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Date: Fri, 12 Jun 2009 13:22:53 -0700
Subject: iwlwifi: modify sensitivity value for 5150

In 5150 there is a long delay between the AGC(Automatic Gain Control) command
till the RF is stabilized causing us to miss detections when there was
adjacent channel noise, so we need to adjusted the Sensitivity calibration
for 5150 differently.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-5000.c | 27 +++++++++++++++++++++++++--
 1 file changed, 25 insertions(+), 2 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c
index b3c648ce8c7b..0e445a9c6929 100644
--- a/drivers/net/wireless/iwlwifi/iwl-5000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-5000.c
@@ -407,6 +407,28 @@ static struct iwl_sensitivity_ranges iwl5000_sensitivity = {
 	.nrg_th_ofdm = 95,
 };
 
+static struct iwl_sensitivity_ranges iwl5150_sensitivity = {
+	.min_nrg_cck = 95,
+	.max_nrg_cck = 0, /* not used, set to 0 */
+	.auto_corr_min_ofdm = 90,
+	.auto_corr_min_ofdm_mrc = 170,
+	.auto_corr_min_ofdm_x1 = 105,
+	.auto_corr_min_ofdm_mrc_x1 = 220,
+
+	.auto_corr_max_ofdm = 120,
+	.auto_corr_max_ofdm_mrc = 210,
+	/* max = min for performance bug in 5150 DSP */
+	.auto_corr_max_ofdm_x1 = 105,
+	.auto_corr_max_ofdm_mrc_x1 = 220,
+
+	.auto_corr_min_cck = 125,
+	.auto_corr_max_cck = 200,
+	.auto_corr_min_cck_mrc = 170,
+	.auto_corr_max_cck_mrc = 400,
+	.nrg_th_cck = 95,
+	.nrg_th_ofdm = 95,
+};
+
 static const u8 *iwl5000_eeprom_query_addr(const struct iwl_priv *priv,
 					   size_t offset)
 {
@@ -826,8 +848,6 @@ static int iwl5000_hw_set_hw_params(struct iwl_priv *priv)
 					BIT(IEEE80211_BAND_5GHZ);
 	priv->hw_params.rx_wrt_ptr_reg = FH_RSCSR_CHNL0_WPTR;
 
-	priv->hw_params.sens = &iwl5000_sensitivity;
-
 	priv->hw_params.tx_chains_num = num_of_ant(priv->cfg->valid_tx_ant);
 	priv->hw_params.rx_chains_num = num_of_ant(priv->cfg->valid_rx_ant);
 	priv->hw_params.valid_tx_ant = priv->cfg->valid_tx_ant;
@@ -836,9 +856,11 @@ static int iwl5000_hw_set_hw_params(struct iwl_priv *priv)
 	if (priv->cfg->ops->lib->temp_ops.set_ct_kill)
 		priv->cfg->ops->lib->temp_ops.set_ct_kill(priv);
 
+	/* Set initial sensitivity parameters */
 	/* Set initial calibration set */
 	switch (priv->hw_rev & CSR_HW_REV_TYPE_MSK) {
 	case CSR_HW_REV_TYPE_5150:
+		priv->hw_params.sens = &iwl5150_sensitivity;
 		priv->hw_params.calib_init_cfg =
 			BIT(IWL_CALIB_DC)		|
 			BIT(IWL_CALIB_LO)		|
@@ -847,6 +869,7 @@ static int iwl5000_hw_set_hw_params(struct iwl_priv *priv)
 
 		break;
 	default:
+		priv->hw_params.sens = &iwl5000_sensitivity;
 		priv->hw_params.calib_init_cfg =
 			BIT(IWL_CALIB_XTAL)		|
 			BIT(IWL_CALIB_LO)		|
-- 
cgit v1.2.3


From fe6efb4b423c923fb491a9ca4fa419e843548740 Mon Sep 17 00:00:00 2001
From: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Date: Fri, 12 Jun 2009 13:22:54 -0700
Subject: iwlwifi: no need to refer to max_nrg_cck range value

max_nrg_cck value inside the sensitivity range structure is not needed
for sensitivity calibration.
Keep the parameter in sensitivity structure but set the value to "0" in case
needed in the future implementation.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-4965.c  | 2 +-
 drivers/net/wireless/iwlwifi/iwl-5000.c  | 2 +-
 drivers/net/wireless/iwlwifi/iwl-calib.c | 7 +------
 3 files changed, 3 insertions(+), 8 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c
index 8f3d4bc6a03f..edbb0bfd8cb7 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965.c
+++ b/drivers/net/wireless/iwlwifi/iwl-4965.c
@@ -728,7 +728,7 @@ static int iwl4965_alive_notify(struct iwl_priv *priv)
 
 static struct iwl_sensitivity_ranges iwl4965_sensitivity = {
 	.min_nrg_cck = 97,
-	.max_nrg_cck = 0,
+	.max_nrg_cck = 0, /* not used, set to 0 */
 
 	.auto_corr_min_ofdm = 85,
 	.auto_corr_min_ofdm_mrc = 170,
diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c
index 0e445a9c6929..85e8bac499a7 100644
--- a/drivers/net/wireless/iwlwifi/iwl-5000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-5000.c
@@ -388,7 +388,7 @@ void iwl5000_rts_tx_cmd_flag(struct ieee80211_tx_info *info,
 
 static struct iwl_sensitivity_ranges iwl5000_sensitivity = {
 	.min_nrg_cck = 95,
-	.max_nrg_cck = 0,
+	.max_nrg_cck = 0, /* not used, set to 0 */
 	.auto_corr_min_ofdm = 90,
 	.auto_corr_min_ofdm_mrc = 170,
 	.auto_corr_min_ofdm_x1 = 120,
diff --git a/drivers/net/wireless/iwlwifi/iwl-calib.c b/drivers/net/wireless/iwlwifi/iwl-calib.c
index a5d63672ad39..f8bf592e939c 100644
--- a/drivers/net/wireless/iwlwifi/iwl-calib.c
+++ b/drivers/net/wireless/iwlwifi/iwl-calib.c
@@ -251,12 +251,7 @@ static int iwl_sens_energy_cck(struct iwl_priv *priv,
 
 		/* increase energy threshold (reduce nrg value)
 		 *   to decrease sensitivity */
-		if (data->nrg_th_cck >
-			(ranges->max_nrg_cck + NRG_STEP_CCK))
-			data->nrg_th_cck = data->nrg_th_cck
-						 - NRG_STEP_CCK;
-		else
-			data->nrg_th_cck = ranges->max_nrg_cck;
+		data->nrg_th_cck = data->nrg_th_cck - NRG_STEP_CCK;
 	/* Else if we got fewer than desired, increase sensitivity */
 	} else if (false_alarms < min_false_alarms) {
 		data->nrg_curr_state = IWL_FA_TOO_FEW;
-- 
cgit v1.2.3


From 030b865520c3e26f4a316852aa022a22c4948907 Mon Sep 17 00:00:00 2001
From: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Date: Fri, 12 Jun 2009 13:22:55 -0700
Subject: iwlwifi: remove disable_tx_power for device > 4965

After 4965, tx_power_calibration moved from driver to uCode.
remove "disable_tx_power" from debugfs to minimize the confusion.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-debugfs.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
index 11e08c068917..f32ac74b69ac 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
@@ -615,7 +615,10 @@ int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
 	DEBUGFS_ADD_BOOL(disable_sensitivity, rf, &priv->disable_sens_cal);
 	DEBUGFS_ADD_BOOL(disable_chain_noise, rf,
 			 &priv->disable_chain_noise_cal);
-	DEBUGFS_ADD_BOOL(disable_tx_power, rf, &priv->disable_tx_power_cal);
+	if (((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_4965) ||
+	    ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_3945))
+		DEBUGFS_ADD_BOOL(disable_tx_power, rf,
+				&priv->disable_tx_power_cal);
 	return 0;
 
 err:
@@ -646,7 +649,9 @@ void iwl_dbgfs_unregister(struct iwl_priv *priv)
 	DEBUGFS_REMOVE(priv->dbgfs->dir_data);
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_sensitivity);
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_chain_noise);
-	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_tx_power);
+	if (((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_4965) ||
+	    ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_3945))
+		DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_tx_power);
 	DEBUGFS_REMOVE(priv->dbgfs->dir_rf);
 	DEBUGFS_REMOVE(priv->dbgfs->dir_drv);
 	kfree(priv->dbgfs);
-- 
cgit v1.2.3


From f1d58c2521eb160178b2151d6326d8dc5d7c8560 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Wed, 17 Jun 2009 13:13:00 +0200
Subject: mac80211: push rx status into skb->cb

Within mac80211, we often need to copy the rx status into
skb->cb. This is wasteful, as drivers could be building it
in there to start with. This patch changes the API so that
drivers are expected to pass the RX status in skb->cb, now
accessible as IEEE80211_SKB_RXCB(skb). It also updates all
drivers to pass the rx status in there, but only by making
them memcpy() it into place before the call to the receive
function (ieee80211_rx(_irqsafe)). Each driver can now be
optimised on its own schedule.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-3945.c | 3 ++-
 drivers/net/wireless/iwlwifi/iwl-rx.c   | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c
index 46288e724889..777c09534cec 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945.c
@@ -577,7 +577,8 @@ static void iwl3945_pass_packet_to_mac80211(struct iwl_priv *priv,
 	if (ieee80211_is_data(hdr->frame_control))
 		priv->rxtxpackets += len;
 #endif
-	ieee80211_rx_irqsafe(priv->hw, rxb->skb, stats);
+	memcpy(IEEE80211_SKB_RXCB(rxb->skb), stats, sizeof(*stats));
+	ieee80211_rx_irqsafe(priv->hw, rxb->skb);
 	rxb->skb = NULL;
 }
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-rx.c b/drivers/net/wireless/iwlwifi/iwl-rx.c
index 2b8d40b37a1c..2160795ed015 100644
--- a/drivers/net/wireless/iwlwifi/iwl-rx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-rx.c
@@ -932,7 +932,8 @@ static void iwl_pass_packet_to_mac80211(struct iwl_priv *priv,
 		return;
 
 	iwl_update_rx_stats(priv, le16_to_cpu(hdr->frame_control), len);
-	ieee80211_rx_irqsafe(priv->hw, rxb->skb, stats);
+	memcpy(IEEE80211_SKB_RXCB(rxb->skb), stats, sizeof(*stats));
+	ieee80211_rx_irqsafe(priv->hw, rxb->skb);
 	priv->alloc_rxb_skb--;
 	rxb->skb = NULL;
 }
-- 
cgit v1.2.3


From 3354a0f6a3ced6957dfb9f689ad075cfa8fd272f Mon Sep 17 00:00:00 2001
From: Mohamed Abbas <mohamed.abbas@intel.com>
Date: Fri, 19 Jun 2009 13:52:41 -0700
Subject: iwlwifi: Check HW ready before prepare card.

Hardware may be ready for us to manage it without us trying to prepare
it first. Check if this is the case.

Signed-off-by: Mohamed Abbas <mohamed.abbas@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-agn.c | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index 6d1519e1f011..63cba8c0ad4d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -1812,6 +1812,11 @@ static int iwl_prepare_card_hw(struct iwl_priv *priv)
 
 	IWL_DEBUG_INFO(priv, "iwl_prepare_card_hw enter \n");
 
+	ret = iwl_set_hw_ready(priv);
+	if (priv->hw_ready)
+		return ret;
+
+	/* If HW is not ready, prepare the conditions to check again */
 	iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
 			CSR_HW_IF_CONFIG_REG_PREPARE);
 
@@ -1819,6 +1824,7 @@ static int iwl_prepare_card_hw(struct iwl_priv *priv)
 			~CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE,
 			CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE, 150000);
 
+	/* HW should be ready by now, check again. */
 	if (ret != -ETIMEDOUT)
 		iwl_set_hw_ready(priv);
 
-- 
cgit v1.2.3


From 90e8e424d9c071f2db22100de81af6c8f7df34ee Mon Sep 17 00:00:00 2001
From: Tomas Winkler <tomas.winkler@intel.com>
Date: Fri, 19 Jun 2009 13:52:42 -0700
Subject: iwlwifi: drop sw_crypto from hw_params.

Each HW supported by iwlwifi is capable of hardware crypto
so drop this flag from hw_params structure.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-3945.c | 2 +-
 drivers/net/wireless/iwlwifi/iwl-agn.c  | 4 ++--
 drivers/net/wireless/iwlwifi/iwl-core.c | 1 -
 drivers/net/wireless/iwlwifi/iwl-dev.h  | 1 -
 drivers/net/wireless/iwlwifi/iwl-rx.c   | 2 +-
 5 files changed, 4 insertions(+), 6 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c
index 777c09534cec..8cfc83055aa0 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945.c
@@ -1987,7 +1987,7 @@ static int iwl3945_commit_rxon(struct iwl_priv *priv)
 	staging_rxon->reserved4 = 0;
 	staging_rxon->reserved5 = 0;
 
-	iwl_set_rxon_hwcrypto(priv, !priv->hw_params.sw_crypto);
+	iwl_set_rxon_hwcrypto(priv, !iwl3945_mod_params.sw_crypto);
 
 	/* Apply the new configuration */
 	rc = iwl_send_cmd_pdu(priv, REPLY_RXON,
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index 63cba8c0ad4d..d9285615c679 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -171,7 +171,7 @@ int iwl_commit_rxon(struct iwl_priv *priv)
 		       le16_to_cpu(priv->staging_rxon.channel),
 		       priv->staging_rxon.bssid_addr);
 
-	iwl_set_rxon_hwcrypto(priv, !priv->hw_params.sw_crypto);
+	iwl_set_rxon_hwcrypto(priv, !priv->cfg->mod_params->sw_crypto);
 
 	/* Apply the new configuration
 	 * RXON unassoc clears the station table in uCode, send it before
@@ -2337,7 +2337,7 @@ static int iwl_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 
 	IWL_DEBUG_MAC80211(priv, "enter\n");
 
-	if (priv->hw_params.sw_crypto) {
+	if (priv->cfg->mod_params->sw_crypto) {
 		IWL_DEBUG_MAC80211(priv, "leave - hwcrypto disabled\n");
 		return -EOPNOTSUPP;
 	}
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 6ab07165ea28..11a19692f33b 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -1361,7 +1361,6 @@ EXPORT_SYMBOL(iwl_setup_mac);
 
 int iwl_set_hw_params(struct iwl_priv *priv)
 {
-	priv->hw_params.sw_crypto = priv->cfg->mod_params->sw_crypto;
 	priv->hw_params.max_rxq_size = RX_QUEUE_SIZE;
 	priv->hw_params.max_rxq_log = RX_QUEUE_SIZE_LOG;
 	if (priv->cfg->mod_params->amsdu_size_8K)
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index e2d620f0b6e8..5da60e402f7b 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -608,7 +608,6 @@ struct iwl_hw_params {
 	u8  max_stations;
 	u8  bcast_sta_id;
 	u8 fat_channel;
-	u8 sw_crypto;
 	u32 max_inst_size;
 	u32 max_data_size;
 	u32 max_bsm_size;
diff --git a/drivers/net/wireless/iwlwifi/iwl-rx.c b/drivers/net/wireless/iwlwifi/iwl-rx.c
index 2160795ed015..66fe365dd08a 100644
--- a/drivers/net/wireless/iwlwifi/iwl-rx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-rx.c
@@ -927,7 +927,7 @@ static void iwl_pass_packet_to_mac80211(struct iwl_priv *priv,
 	hdr = (struct ieee80211_hdr *)rxb->skb->data;
 
 	/*  in case of HW accelerated crypto and bad decryption, drop */
-	if (!priv->hw_params.sw_crypto &&
+	if (!priv->cfg->mod_params->sw_crypto &&
 	    iwl_set_decrypted_flag(priv, hdr, ampdu_status, stats))
 		return;
 
-- 
cgit v1.2.3


From 45af81956e990440fe78d6d41f847664cb620609 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Fri, 19 Jun 2009 13:52:43 -0700
Subject: iwlwifi: make software queue assignment more efficient

There really is no reason to be assigning txq->swq_id all the
time, once at aggregation setup is sufficient.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-tx.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-tx.c b/drivers/net/wireless/iwlwifi/iwl-tx.c
index 85ae7a62109c..b35c1fd2cb29 100644
--- a/drivers/net/wireless/iwlwifi/iwl-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-tx.c
@@ -348,6 +348,10 @@ int iwl_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq,
 
 	txq->need_update = 0;
 
+	/* aggregation TX queues will get their ID when aggregation begins */
+	if (txq_id <= IWL_TX_FIFO_AC3)
+		txq->swq_id = txq_id;
+
 	/* TFD_QUEUE_SIZE_MAX must be power-of-two size, otherwise
 	 * iwl_queue_inc_wrap and iwl_queue_dec_wrap are broken. */
 	BUILD_BUG_ON(TFD_QUEUE_SIZE_MAX & (TFD_QUEUE_SIZE_MAX - 1));
@@ -734,8 +738,7 @@ int iwl_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
 
 	IWL_DEBUG_TX(priv, "station Id %d\n", sta_id);
 
-	swq_id = skb_get_queue_mapping(skb);
-	txq_id = swq_id;
+	txq_id = skb_get_queue_mapping(skb);
 	if (ieee80211_is_data_qos(fc)) {
 		qc = ieee80211_get_qos_ctl(hdr);
 		tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK;
@@ -746,16 +749,14 @@ int iwl_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
 		hdr->seq_ctrl |= cpu_to_le16(seq_number);
 		seq_number += 0x10;
 		/* aggregation is on for this <sta,tid> */
-		if (info->flags & IEEE80211_TX_CTL_AMPDU) {
+		if (info->flags & IEEE80211_TX_CTL_AMPDU)
 			txq_id = priv->stations[sta_id].tid[tid].agg.txq_id;
-			swq_id = iwl_virtual_agg_queue_num(swq_id, txq_id);
-		}
 		priv->stations[sta_id].tid[tid].tfds_in_queue++;
 	}
 
 	txq = &priv->txq[txq_id];
+	swq_id = txq->swq_id;
 	q = &txq->q;
-	txq->swq_id = swq_id;
 
 	spin_lock_irqsave(&priv->lock, flags);
 
@@ -1186,6 +1187,7 @@ int iwl_tx_agg_start(struct iwl_priv *priv, const u8 *ra, u16 tid, u16 *ssn)
 	tid_data = &priv->stations[sta_id].tid[tid];
 	*ssn = SEQ_TO_SN(tid_data->seq_number);
 	tid_data->agg.txq_id = txq_id;
+	priv->txq[txq_id].swq_id = iwl_virtual_agg_queue_num(tx_fifo, txq_id);
 	spin_unlock_irqrestore(&priv->sta_lock, flags);
 
 	ret = priv->cfg->ops->lib->txq_agg_enable(priv, txq_id, tx_fifo,
-- 
cgit v1.2.3


From 4e05c2347a50f1d0892ff3475d7609eec428f781 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Fri, 19 Jun 2009 13:52:44 -0700
Subject: iwlwifi: scan requested channels only

When userspace requests only certain channels to be scanned,
we currently ignore that request entirely.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-core.h     |  2 --
 drivers/net/wireless/iwlwifi/iwl-scan.c     | 31 +++++++++++++----------------
 drivers/net/wireless/iwlwifi/iwl3945-base.c | 14 ++++++-------
 3 files changed, 21 insertions(+), 26 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h
index dabf663e36e5..356d4e3aec7e 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.h
+++ b/drivers/net/wireless/iwlwifi/iwl-core.h
@@ -384,7 +384,6 @@ static inline __le32 iwl_hw_set_rate_n_flags(u8 rate, u32 flags)
 void iwl_init_scan_params(struct iwl_priv *priv);
 int iwl_scan_cancel(struct iwl_priv *priv);
 int iwl_scan_cancel_timeout(struct iwl_priv *priv, unsigned long ms);
-int iwl_scan_initiate(struct iwl_priv *priv);
 int iwl_mac_hw_scan(struct ieee80211_hw *hw, struct cfg80211_scan_request *req);
 u16 iwl_fill_probe_req(struct iwl_priv *priv, struct ieee80211_mgmt *frame,
 		       const u8 *ie, int ie_len, int left);
@@ -398,7 +397,6 @@ void iwl_bg_scan_check(struct work_struct *data);
 void iwl_bg_abort_scan(struct work_struct *work);
 void iwl_bg_scan_completed(struct work_struct *work);
 void iwl_setup_scan_deferred_work(struct iwl_priv *priv);
-int iwl_send_scan_abort(struct iwl_priv *priv);
 
 /* For faster active scanning, scan will move to the next channel if fewer than
  * PLCP_QUIET_THRESH packets are heard on this channel within
diff --git a/drivers/net/wireless/iwlwifi/iwl-scan.c b/drivers/net/wireless/iwlwifi/iwl-scan.c
index e26875dbe859..00398d973a07 100644
--- a/drivers/net/wireless/iwlwifi/iwl-scan.c
+++ b/drivers/net/wireless/iwlwifi/iwl-scan.c
@@ -109,7 +109,7 @@ int iwl_scan_cancel_timeout(struct iwl_priv *priv, unsigned long ms)
 }
 EXPORT_SYMBOL(iwl_scan_cancel_timeout);
 
-int iwl_send_scan_abort(struct iwl_priv *priv)
+static int iwl_send_scan_abort(struct iwl_priv *priv)
 {
 	int ret = 0;
 	struct iwl_rx_packet *res;
@@ -150,7 +150,6 @@ int iwl_send_scan_abort(struct iwl_priv *priv)
 
 	return ret;
 }
-EXPORT_SYMBOL(iwl_send_scan_abort);
 
 /* Service response to REPLY_SCAN_CMD (0x80) */
 static void iwl_rx_reply_scan(struct iwl_priv *priv,
@@ -322,7 +321,7 @@ static int iwl_get_channels_for_scan(struct iwl_priv *priv,
 				     u8 is_active, u8 n_probes,
 				     struct iwl_scan_channel *scan_ch)
 {
-	const struct ieee80211_channel *channels = NULL;
+	struct ieee80211_channel *chan;
 	const struct ieee80211_supported_band *sband;
 	const struct iwl_channel_info *ch_info;
 	u16 passive_dwell = 0;
@@ -334,20 +333,19 @@ static int iwl_get_channels_for_scan(struct iwl_priv *priv,
 	if (!sband)
 		return 0;
 
-	channels = sband->channels;
-
 	active_dwell = iwl_get_active_dwell_time(priv, band, n_probes);
 	passive_dwell = iwl_get_passive_dwell_time(priv, band);
 
 	if (passive_dwell <= active_dwell)
 		passive_dwell = active_dwell + 1;
 
-	for (i = 0, added = 0; i < sband->n_channels; i++) {
-		if (channels[i].flags & IEEE80211_CHAN_DISABLED)
+	for (i = 0, added = 0; i < priv->scan_request->n_channels; i++) {
+		chan = priv->scan_request->channels[i];
+
+		if (chan->band != band)
 			continue;
 
-		channel =
-			ieee80211_frequency_to_channel(channels[i].center_freq);
+		channel = ieee80211_frequency_to_channel(chan->center_freq);
 		scan_ch->channel = cpu_to_le16(channel);
 
 		ch_info = iwl_get_channel_info(priv, band, channel);
@@ -358,7 +356,7 @@ static int iwl_get_channels_for_scan(struct iwl_priv *priv,
 		}
 
 		if (!is_active || is_channel_passive(ch_info) ||
-		    (channels[i].flags & IEEE80211_CHAN_PASSIVE_SCAN))
+		    (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN))
 			scan_ch->type = SCAN_CHANNEL_TYPE_PASSIVE;
 		else
 			scan_ch->type = SCAN_CHANNEL_TYPE_ACTIVE;
@@ -405,7 +403,7 @@ void iwl_init_scan_params(struct iwl_priv *priv)
 		priv->scan_tx_ant[IEEE80211_BAND_2GHZ] = ant_idx;
 }
 
-int iwl_scan_initiate(struct iwl_priv *priv)
+static int iwl_scan_initiate(struct iwl_priv *priv)
 {
 	if (!iwl_is_ready_rf(priv)) {
 		IWL_DEBUG_SCAN(priv, "Aborting scan due to not ready.\n");
@@ -423,10 +421,6 @@ int iwl_scan_initiate(struct iwl_priv *priv)
 	}
 
 	IWL_DEBUG_INFO(priv, "Starting scan...\n");
-	if (priv->cfg->sku & IWL_SKU_G)
-		priv->scan_bands |= BIT(IEEE80211_BAND_2GHZ);
-	if (priv->cfg->sku & IWL_SKU_A)
-		priv->scan_bands |= BIT(IEEE80211_BAND_5GHZ);
 	set_bit(STATUS_SCANNING, &priv->status);
 	priv->scan_start = jiffies;
 	priv->scan_pass_start = priv->scan_start;
@@ -435,7 +429,6 @@ int iwl_scan_initiate(struct iwl_priv *priv)
 
 	return 0;
 }
-EXPORT_SYMBOL(iwl_scan_initiate);
 
 #define IWL_DELAY_NEXT_SCAN (HZ*2)
 
@@ -444,7 +437,7 @@ int iwl_mac_hw_scan(struct ieee80211_hw *hw,
 {
 	unsigned long flags;
 	struct iwl_priv *priv = hw->priv;
-	int ret;
+	int ret, i;
 
 	IWL_DEBUG_MAC80211(priv, "enter\n");
 
@@ -478,6 +471,10 @@ int iwl_mac_hw_scan(struct ieee80211_hw *hw,
 		goto out_unlock;
 	}
 
+	priv->scan_bands = 0;
+	for (i = 0; i < req->n_channels; i++)
+		priv->scan_bands |= BIT(req->channels[i]->band);
+
 	priv->scan_request = req;
 
 	ret = iwl_scan_initiate(priv);
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index cb9bd4c8f25e..016567f3e88e 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -1844,7 +1844,7 @@ static int iwl3945_get_channels_for_scan(struct iwl_priv *priv,
 				     u8 is_active, u8 n_probes,
 				     struct iwl3945_scan_channel *scan_ch)
 {
-	const struct ieee80211_channel *channels = NULL;
+	struct ieee80211_channel *chan;
 	const struct ieee80211_supported_band *sband;
 	const struct iwl_channel_info *ch_info;
 	u16 passive_dwell = 0;
@@ -1855,19 +1855,19 @@ static int iwl3945_get_channels_for_scan(struct iwl_priv *priv,
 	if (!sband)
 		return 0;
 
-	channels = sband->channels;
-
 	active_dwell = iwl_get_active_dwell_time(priv, band, n_probes);
 	passive_dwell = iwl_get_passive_dwell_time(priv, band);
 
 	if (passive_dwell <= active_dwell)
 		passive_dwell = active_dwell + 1;
 
-	for (i = 0, added = 0; i < sband->n_channels; i++) {
-		if (channels[i].flags & IEEE80211_CHAN_DISABLED)
+	for (i = 0, added = 0; i < priv->scan_request->n_channels; i++) {
+		chan = priv->scan_request->channels[i];
+
+		if (chan->band != band)
 			continue;
 
-		scan_ch->channel = channels[i].hw_value;
+		scan_ch->channel = chan->hw_value;
 
 		ch_info = iwl_get_channel_info(priv, band, scan_ch->channel);
 		if (!is_channel_valid(ch_info)) {
@@ -1882,7 +1882,7 @@ static int iwl3945_get_channels_for_scan(struct iwl_priv *priv,
 		 *  and use long active_dwell time.
 		 */
 		if (!is_active || is_channel_passive(ch_info) ||
-		    (channels[i].flags & IEEE80211_CHAN_PASSIVE_SCAN)) {
+		    (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)) {
 			scan_ch->type = 0;	/* passive */
 			if (IWL_UCODE_API(priv->ucode_ver) == 1)
 				scan_ch->active_dwell = cpu_to_le16(passive_dwell - 1);
-- 
cgit v1.2.3


From 2c2f3b33888419fb9e7d015b9dc67b9db4437efa Mon Sep 17 00:00:00 2001
From: Tomas Winkler <tomas.winkler@intel.com>
Date: Fri, 19 Jun 2009 13:52:45 -0700
Subject: iwlwifi: unify iwl_setup_rxon_timing

This patch unifies setup_rxon_timing funcions
of AGN and 3945. HWs differ only in supported maximal
beacon interval. This is reflected in hw_paras.max_beacon_itrvl

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-3945.c     |  1 +
 drivers/net/wireless/iwlwifi/iwl-agn.c      | 64 -------------------------
 drivers/net/wireless/iwlwifi/iwl-commands.h |  2 +
 drivers/net/wireless/iwlwifi/iwl-core.c     | 59 +++++++++++++++++++++++
 drivers/net/wireless/iwlwifi/iwl-core.h     |  1 +
 drivers/net/wireless/iwlwifi/iwl-dev.h      |  1 +
 drivers/net/wireless/iwlwifi/iwl3945-base.c | 74 +----------------------------
 7 files changed, 66 insertions(+), 136 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c
index 8cfc83055aa0..b0246dbda99a 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945.c
@@ -2563,6 +2563,7 @@ int iwl3945_hw_set_hw_params(struct iwl_priv *priv)
 	priv->hw_params.bcast_sta_id = IWL3945_BROADCAST_ID;
 
 	priv->hw_params.rx_wrt_ptr_reg = FH39_RSCSR_CHNL0_WPTR;
+	priv->hw_params.max_beacon_itrvl = IWL39_MAX_UCODE_BEACON_INTERVAL;
 
 	return 0;
 }
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index d9285615c679..1d4e9cadb088 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -512,70 +512,6 @@ int iwl_hw_tx_queue_init(struct iwl_priv *priv,
 	return 0;
 }
 
-
-/******************************************************************************
- *
- * Misc. internal state and helper functions
- *
- ******************************************************************************/
-
-#define MAX_UCODE_BEACON_INTERVAL	4096
-
-static u16 iwl_adjust_beacon_interval(u16 beacon_val)
-{
-	u16 new_val = 0;
-	u16 beacon_factor = 0;
-
-	beacon_factor = (beacon_val + MAX_UCODE_BEACON_INTERVAL)
-					/ MAX_UCODE_BEACON_INTERVAL;
-	new_val = beacon_val / beacon_factor;
-
-	if (!new_val)
-		new_val = MAX_UCODE_BEACON_INTERVAL;
-
-	return new_val;
-}
-
-static void iwl_setup_rxon_timing(struct iwl_priv *priv)
-{
-	u64 tsf;
-	s32 interval_tm, rem;
-	unsigned long flags;
-	struct ieee80211_conf *conf = NULL;
-	u16 beacon_int = 0;
-
-	conf = ieee80211_get_hw_conf(priv->hw);
-
-	spin_lock_irqsave(&priv->lock, flags);
-	priv->rxon_timing.timestamp = cpu_to_le64(priv->timestamp);
-	priv->rxon_timing.listen_interval = cpu_to_le16(conf->listen_interval);
-
-	if (priv->iw_mode == NL80211_IFTYPE_STATION) {
-		beacon_int = iwl_adjust_beacon_interval(priv->beacon_int);
-		priv->rxon_timing.atim_window = 0;
-	} else {
-		beacon_int = iwl_adjust_beacon_interval(
-			priv->vif->bss_conf.beacon_int);
-
-		/* TODO: we need to get atim_window from upper stack
-		 * for now we set to 0 */
-		priv->rxon_timing.atim_window = 0;
-	}
-
-	priv->rxon_timing.beacon_interval = cpu_to_le16(beacon_int);
-
-	tsf = priv->timestamp; /* tsf is modifed by do_div: copy it */
-	interval_tm = beacon_int * 1024;
-	rem = do_div(tsf, interval_tm);
-	priv->rxon_timing.beacon_init_val = cpu_to_le32(interval_tm - rem);
-
-	spin_unlock_irqrestore(&priv->lock, flags);
-	IWL_DEBUG_ASSOC(priv, "beacon interval %d beacon timer %d beacon tim %d\n",
-			le16_to_cpu(priv->rxon_timing.beacon_interval),
-			le32_to_cpu(priv->rxon_timing.beacon_init_val),
-			le16_to_cpu(priv->rxon_timing.atim_window));
-}
-
 /******************************************************************************
  *
  * Generic RX handler implementations
diff --git a/drivers/net/wireless/iwlwifi/iwl-commands.h b/drivers/net/wireless/iwlwifi/iwl-commands.h
index c87033bf3ad2..6e9b8a8356ea 100644
--- a/drivers/net/wireless/iwlwifi/iwl-commands.h
+++ b/drivers/net/wireless/iwlwifi/iwl-commands.h
@@ -765,6 +765,8 @@ struct iwl5000_rxon_assoc_cmd {
 } __attribute__ ((packed));
 
 #define IWL_CONN_MAX_LISTEN_INTERVAL	10
+#define IWL_MAX_UCODE_BEACON_INTERVAL	4 /* 4096 */
+#define IWL39_MAX_UCODE_BEACON_INTERVAL	1 /* 1024 */
 
 /*
  * REPLY_RXON_TIMING = 0x14 (command, has simple generic response)
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 11a19692f33b..7e528a0a15e3 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -635,6 +635,63 @@ u8 iwl_is_fat_tx_allowed(struct iwl_priv *priv,
 }
 EXPORT_SYMBOL(iwl_is_fat_tx_allowed);
 
+static u16 iwl_adjust_beacon_interval(u16 beacon_val, u16 max_beacon_val)
+{
+	u16 new_val = 0;
+	u16 beacon_factor = 0;
+
+	beacon_factor = (beacon_val + max_beacon_val) / max_beacon_val;
+	new_val = beacon_val / beacon_factor;
+
+	if (!new_val)
+		new_val = max_beacon_val;
+
+	return new_val;
+}
+
+void iwl_setup_rxon_timing(struct iwl_priv *priv)
+{
+	u64 tsf;
+	s32 interval_tm, rem;
+	unsigned long flags;
+	struct ieee80211_conf *conf = NULL;
+	u16 beacon_int;
+
+	conf = ieee80211_get_hw_conf(priv->hw);
+
+	spin_lock_irqsave(&priv->lock, flags);
+	priv->rxon_timing.timestamp = cpu_to_le64(priv->timestamp);
+	priv->rxon_timing.listen_interval = cpu_to_le16(conf->listen_interval);
+
+	if (priv->iw_mode == NL80211_IFTYPE_STATION) {
+		beacon_int = priv->beacon_int;
+		priv->rxon_timing.atim_window = 0;
+	} else {
+		beacon_int = priv->vif->bss_conf.beacon_int;
+
+		/* TODO: we need to get atim_window from upper stack
+		 * for now we set to 0 */
+		priv->rxon_timing.atim_window = 0;
+	}
+
+	beacon_int = iwl_adjust_beacon_interval(beacon_int,
+				priv->hw_params.max_beacon_itrvl * 1024);
+	priv->rxon_timing.beacon_interval = cpu_to_le16(beacon_int);
+
+	tsf = priv->timestamp; /* tsf is modifed by do_div: copy it */
+	interval_tm = beacon_int * 1024;
+	rem = do_div(tsf, interval_tm);
+	priv->rxon_timing.beacon_init_val = cpu_to_le32(interval_tm - rem);
+
+	spin_unlock_irqrestore(&priv->lock, flags);
+	IWL_DEBUG_ASSOC(priv,
+			"beacon interval %d beacon timer %d beacon tim %d\n",
+			le16_to_cpu(priv->rxon_timing.beacon_interval),
+			le32_to_cpu(priv->rxon_timing.beacon_init_val),
+			le16_to_cpu(priv->rxon_timing.atim_window));
+}
+EXPORT_SYMBOL(iwl_setup_rxon_timing);
+
 void iwl_set_rxon_hwcrypto(struct iwl_priv *priv, int hw_decrypt)
 {
 	struct iwl_rxon_cmd *rxon = &priv->staging_rxon;
@@ -1369,6 +1426,8 @@ int iwl_set_hw_params(struct iwl_priv *priv)
 		priv->hw_params.rx_buf_size = IWL_RX_BUF_SIZE_4K;
 	priv->hw_params.max_pkt_size = priv->hw_params.rx_buf_size - 256;
 
+	priv->hw_params.max_beacon_itrvl = IWL_MAX_UCODE_BEACON_INTERVAL;
+
 	if (priv->cfg->mod_params->disable_11n)
 		priv->cfg->sku &= ~IWL_SKU_N;
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h
index 356d4e3aec7e..a658410e66a4 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.h
+++ b/drivers/net/wireless/iwlwifi/iwl-core.h
@@ -554,6 +554,7 @@ extern void iwl_rx_reply_rx_phy(struct iwl_priv *priv,
 void iwl_rx_reply_compressed_ba(struct iwl_priv *priv,
 					   struct iwl_rx_mem_buffer *rxb);
 
+void iwl_setup_rxon_timing(struct iwl_priv *priv);
 static inline int iwl_send_rxon_assoc(struct iwl_priv *priv)
 {
 	return priv->cfg->ops->hcmd->rxon_assoc(priv);
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index 5da60e402f7b..1a2fe37d4735 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -608,6 +608,7 @@ struct iwl_hw_params {
 	u8  max_stations;
 	u8  bcast_sta_id;
 	u8 fat_channel;
+	u8  max_beacon_itrvl;	/* in 1024 ms */
 	u32 max_inst_size;
 	u32 max_data_size;
 	u32 max_bsm_size;
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index 016567f3e88e..303c4b483f5b 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -361,76 +361,6 @@ static void iwl3945_unset_hw_params(struct iwl_priv *priv)
 				    priv->shared_phys);
 }
 
-#define MAX_UCODE_BEACON_INTERVAL	1024
-#define INTEL_CONN_LISTEN_INTERVAL	cpu_to_le16(0xA)
-
-static __le16 iwl3945_adjust_beacon_interval(u16 beacon_val)
-{
-	u16 new_val = 0;
-	u16 beacon_factor = 0;
-
-	beacon_factor =
-	    (beacon_val + MAX_UCODE_BEACON_INTERVAL)
-		/ MAX_UCODE_BEACON_INTERVAL;
-	new_val = beacon_val / beacon_factor;
-
-	return cpu_to_le16(new_val);
-}
-
-static void iwl3945_setup_rxon_timing(struct iwl_priv *priv)
-{
-	u64 interval_tm_unit;
-	u64 tsf, result;
-	unsigned long flags;
-	struct ieee80211_conf *conf = NULL;
-	u16 beacon_int = 0;
-
-	conf = ieee80211_get_hw_conf(priv->hw);
-
-	spin_lock_irqsave(&priv->lock, flags);
-	priv->rxon_timing.timestamp = cpu_to_le64(priv->timestamp);
-	priv->rxon_timing.listen_interval = INTEL_CONN_LISTEN_INTERVAL;
-
-	tsf = priv->timestamp;
-
-	beacon_int = priv->beacon_int;
-	spin_unlock_irqrestore(&priv->lock, flags);
-
-	if (priv->iw_mode == NL80211_IFTYPE_STATION) {
-		if (beacon_int == 0) {
-			priv->rxon_timing.beacon_interval = cpu_to_le16(100);
-			priv->rxon_timing.beacon_init_val = cpu_to_le32(102400);
-		} else {
-			priv->rxon_timing.beacon_interval =
-				cpu_to_le16(beacon_int);
-			priv->rxon_timing.beacon_interval =
-			    iwl3945_adjust_beacon_interval(
-				le16_to_cpu(priv->rxon_timing.beacon_interval));
-		}
-
-		priv->rxon_timing.atim_window = 0;
-	} else {
-		priv->rxon_timing.beacon_interval =
-			iwl3945_adjust_beacon_interval(
-				priv->vif->bss_conf.beacon_int);
-		/* TODO: we need to get atim_window from upper stack
-		 * for now we set to 0 */
-		priv->rxon_timing.atim_window = 0;
-	}
-
-	interval_tm_unit =
-		(le16_to_cpu(priv->rxon_timing.beacon_interval) * 1024);
-	result = do_div(tsf, interval_tm_unit);
-	priv->rxon_timing.beacon_init_val =
-	    cpu_to_le32((u32) ((u64) interval_tm_unit - result));
-
-	IWL_DEBUG_ASSOC(priv,
-		"beacon interval %d beacon timer %d beacon tim %d\n",
-		le16_to_cpu(priv->rxon_timing.beacon_interval),
-		le32_to_cpu(priv->rxon_timing.beacon_init_val),
-		le16_to_cpu(priv->rxon_timing.atim_window));
-}
-
 static void iwl3945_build_tx_cmd_hwcrypto(struct iwl_priv *priv,
 				      struct ieee80211_tx_info *info,
 				      struct iwl_cmd *cmd,
@@ -3066,7 +2996,7 @@ void iwl3945_post_associate(struct iwl_priv *priv)
 	iwlcore_commit_rxon(priv);
 
 	memset(&priv->rxon_timing, 0, sizeof(struct iwl_rxon_time_cmd));
-	iwl3945_setup_rxon_timing(priv);
+	iwl_setup_rxon_timing(priv);
 	rc = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING,
 			      sizeof(priv->rxon_timing), &priv->rxon_timing);
 	if (rc)
@@ -3261,7 +3191,7 @@ void iwl3945_config_ap(struct iwl_priv *priv)
 
 		/* RXON Timing */
 		memset(&priv->rxon_timing, 0, sizeof(struct iwl_rxon_time_cmd));
-		iwl3945_setup_rxon_timing(priv);
+		iwl_setup_rxon_timing(priv);
 		rc = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING,
 				      sizeof(priv->rxon_timing),
 				      &priv->rxon_timing);
-- 
cgit v1.2.3


From f55e668f902e40a5299deb8cc5940d1d24b19ea0 Mon Sep 17 00:00:00 2001
From: Reinette Chatre <reinette.chatre@intel.com>
Date: Fri, 26 Jun 2009 11:00:53 -0700
Subject: iwlagn: re-enable PS support for iwlagn

The register locking rework addressed the problem where nic
access was obtained incorrectly when PS is enabled.

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-core.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 7e528a0a15e3..d5cd9a20edca 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -1382,7 +1382,8 @@ int iwl_setup_mac(struct iwl_priv *priv)
 	hw->flags = IEEE80211_HW_SIGNAL_DBM |
 		    IEEE80211_HW_NOISE_DBM |
 		    IEEE80211_HW_AMPDU_AGGREGATION |
-		    IEEE80211_HW_SPECTRUM_MGMT;
+		    IEEE80211_HW_SPECTRUM_MGMT |
+		    IEEE80211_HW_SUPPORTS_PS;
 	hw->wiphy->interface_modes =
 		BIT(NL80211_IFTYPE_STATION) |
 		BIT(NL80211_IFTYPE_ADHOC);
-- 
cgit v1.2.3


From 68021b966b3cb363596251bac0370c12e084e7da Mon Sep 17 00:00:00 2001
From: Reinette Chatre <reinette.chatre@intel.com>
Date: Fri, 26 Jun 2009 11:00:54 -0700
Subject: iwlwifi: add utility to print buffer when error occurs

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-debug.h | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-debug.h b/drivers/net/wireless/iwlwifi/iwl-debug.h
index 2cf014f523be..65bbce0f1717 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debug.h
+++ b/drivers/net/wireless/iwlwifi/iwl-debug.h
@@ -36,6 +36,12 @@ struct iwl_priv;
 #define IWL_INFO(p, f, a...) dev_info(&((p)->pci_dev->dev), f, ## a)
 #define IWL_CRIT(p, f, a...) dev_crit(&((p)->pci_dev->dev), f, ## a)
 
+#define iwl_print_hex_error(priv, p, len) 				\
+do {									\
+	print_hex_dump(KERN_ERR, "iwl data: ",				\
+		       DUMP_PREFIX_OFFSET, 16, 1, p, len, 1);		\
+} while (0)
+
 #ifdef CONFIG_IWLWIFI_DEBUG
 #define IWL_DEBUG(__priv, level, fmt, args...)				\
 do {									\
-- 
cgit v1.2.3


From 7ac487260e087f1660e856d4afae2dd49774f66b Mon Sep 17 00:00:00 2001
From: Reinette Chatre <reinette.chatre@intel.com>
Date: Fri, 26 Jun 2009 11:00:55 -0700
Subject: iwlwifi: always print buffer when error condition occurs

We want to see the buffer contents when the error occurs without
needing to set any debug flags.

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-tx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-tx.c b/drivers/net/wireless/iwlwifi/iwl-tx.c
index b35c1fd2cb29..753fca32d9df 100644
--- a/drivers/net/wireless/iwlwifi/iwl-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-tx.c
@@ -1109,7 +1109,7 @@ void iwl_tx_cmd_complete(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
 		  txq_id, sequence,
 		  priv->txq[IWL_CMD_QUEUE_NUM].q.read_ptr,
 		  priv->txq[IWL_CMD_QUEUE_NUM].q.write_ptr)) {
-		iwl_print_hex_dump(priv, IWL_DL_INFO , rxb, 32);
+		iwl_print_hex_error(priv, rxb, 32);
 		return;
 	}
 
-- 
cgit v1.2.3


From b623a9f7c488e51dbe4320d8b5cdd0ba242d0067 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Wed, 1 Jul 2009 14:57:59 +0200
Subject: iwlwifi: fix aggregation limit

According to the documentation, the limit is 0x3f == 63, not 64.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-commands.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-commands.h b/drivers/net/wireless/iwlwifi/iwl-commands.h
index 6e9b8a8356ea..ebb2fbce5365 100644
--- a/drivers/net/wireless/iwlwifi/iwl-commands.h
+++ b/drivers/net/wireless/iwlwifi/iwl-commands.h
@@ -1924,7 +1924,7 @@ struct iwl_link_qual_general_params {
 #define LINK_QUAL_AGG_DISABLE_START_MIN	(0)
 
 #define LINK_QUAL_AGG_FRAME_LIMIT_DEF	(31)
-#define LINK_QUAL_AGG_FRAME_LIMIT_MAX	(64)
+#define LINK_QUAL_AGG_FRAME_LIMIT_MAX	(63)
 #define LINK_QUAL_AGG_FRAME_LIMIT_MIN	(0)
 
 /**
-- 
cgit v1.2.3


From f5ad69fa47e7b204d0032d569812544cd9a351fb Mon Sep 17 00:00:00 2001
From: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Date: Thu, 9 Jul 2009 10:33:36 -0700
Subject: iwlwifi: move show_qos to debugfs

This move the show_qos file from sysfs to debugfs because the "one
value per file" sysfs rule.

The file is located in
/sys/kernel/debug/ieee80211/phy0/iwlagn/data

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-agn.c     | 21 ---------------------
 drivers/net/wireless/iwlwifi/iwl-debug.h   |  1 +
 drivers/net/wireless/iwlwifi/iwl-debugfs.c | 25 +++++++++++++++++++++++++
 3 files changed, 26 insertions(+), 21 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index e2cc5994d108..ad5002211ab4 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -2627,26 +2627,6 @@ static ssize_t show_power_level(struct device *d,
 static DEVICE_ATTR(power_level, S_IWUSR | S_IRUSR, show_power_level,
 		   store_power_level);
 
-static ssize_t show_qos(struct device *d,
-				struct device_attribute *attr, char *buf)
-{
-	struct iwl_priv *priv = dev_get_drvdata(d);
-	char *p = buf;
-	int   q;
-
-	for (q = 0; q < AC_NUM; q++) {
-		p += sprintf(p, "\tcw_min\tcw_max\taifsn\ttxop\n");
-		p += sprintf(p, "AC[%d]\t%u\t%u\t%u\t%u\n", q,
-			     priv->qos_data.def_qos_parm.ac[q].cw_min,
-			     priv->qos_data.def_qos_parm.ac[q].cw_max,
-			     priv->qos_data.def_qos_parm.ac[q].aifsn,
-			     priv->qos_data.def_qos_parm.ac[q].edca_txop);
-	}
-
-	return p - buf + 1;
-}
-
-static DEVICE_ATTR(qos, S_IRUGO, show_qos, NULL);
 
 static ssize_t show_statistics(struct device *d,
 			       struct device_attribute *attr, char *buf)
@@ -2747,7 +2727,6 @@ static struct attribute *iwl_sysfs_entries[] = {
 	&dev_attr_debug_level.attr,
 #endif
 	&dev_attr_version.attr,
-	&dev_attr_qos.attr,
 	NULL
 };
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-debug.h b/drivers/net/wireless/iwlwifi/iwl-debug.h
index 65bbce0f1717..1555676fc519 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debug.h
+++ b/drivers/net/wireless/iwlwifi/iwl-debug.h
@@ -82,6 +82,7 @@ struct iwl_debugfs {
 		struct dentry *file_channels;
 		struct dentry *file_status;
 		struct dentry *file_interrupt;
+		struct dentry *file_qos;
 	} dbgfs_data_files;
 	struct dir_rf_files {
 		struct dentry *file_disable_sensitivity;
diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
index f32ac74b69ac..e38ec81b839b 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
@@ -566,6 +566,28 @@ static ssize_t iwl_dbgfs_interrupt_write(struct file *file,
 	return count;
 }
 
+static ssize_t iwl_dbgfs_qos_read(struct file *file, char __user *user_buf,
+				       size_t count, loff_t *ppos)
+{
+	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+	int pos = 0, i;
+	char buf[256];
+	const size_t bufsz = sizeof(buf);
+	ssize_t ret;
+
+	for (i = 0; i < AC_NUM; i++) {
+		pos += scnprintf(buf + pos, bufsz - pos,
+			"\tcw_min\tcw_max\taifsn\ttxop\n");
+		pos += scnprintf(buf + pos, bufsz - pos,
+				"AC[%d]\t%u\t%u\t%u\t%u\n", i,
+				priv->qos_data.def_qos_parm.ac[i].cw_min,
+				priv->qos_data.def_qos_parm.ac[i].cw_max,
+				priv->qos_data.def_qos_parm.ac[i].aifsn,
+				priv->qos_data.def_qos_parm.ac[i].edca_txop);
+	}
+	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+	return ret;
+}
 
 DEBUGFS_READ_WRITE_FILE_OPS(sram);
 DEBUGFS_WRITE_FILE_OPS(log_event);
@@ -576,6 +598,7 @@ DEBUGFS_READ_FILE_OPS(tx_statistics);
 DEBUGFS_READ_FILE_OPS(channels);
 DEBUGFS_READ_FILE_OPS(status);
 DEBUGFS_READ_WRITE_FILE_OPS(interrupt);
+DEBUGFS_READ_FILE_OPS(qos);
 
 /*
  * Create the debugfs files and directories
@@ -612,6 +635,7 @@ int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
 	DEBUGFS_ADD_FILE(channels, data);
 	DEBUGFS_ADD_FILE(status, data);
 	DEBUGFS_ADD_FILE(interrupt, data);
+	DEBUGFS_ADD_FILE(qos, data);
 	DEBUGFS_ADD_BOOL(disable_sensitivity, rf, &priv->disable_sens_cal);
 	DEBUGFS_ADD_BOOL(disable_chain_noise, rf,
 			 &priv->disable_chain_noise_cal);
@@ -646,6 +670,7 @@ void iwl_dbgfs_unregister(struct iwl_priv *priv)
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_channels);
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_status);
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_interrupt);
+	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_qos);
 	DEBUGFS_REMOVE(priv->dbgfs->dir_data);
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_sensitivity);
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_chain_noise);
-- 
cgit v1.2.3


From fcf89d05404dafcde581d44dfa89bd8c8def27f9 Mon Sep 17 00:00:00 2001
From: Reinette Chatre <reinette.chatre@intel.com>
Date: Thu, 9 Jul 2009 10:33:38 -0700
Subject: iwlwifi: fix permissions on debugfs files

debugfs files are created with 644 permissions which gives everybody
read access. This presents a security issue if a user opens the file and
holds it open at the time the driver removes the file. At this point
invalid memory will be accessed.

Fix this by only allowing root to read debugfs files.

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-debugfs.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
index e38ec81b839b..0b9e824b67c2 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
@@ -49,7 +49,8 @@
 
 #define DEBUGFS_ADD_FILE(name, parent) do {                             \
 	dbgfs->dbgfs_##parent##_files.file_##name =                     \
-	debugfs_create_file(#name, 0644, dbgfs->dir_##parent, priv,     \
+	debugfs_create_file(#name, S_IWUSR | S_IRUSR,                   \
+				dbgfs->dir_##parent, priv,              \
 				&iwl_dbgfs_##name##_ops);               \
 	if (!(dbgfs->dbgfs_##parent##_files.file_##name))               \
 		goto err;                                               \
@@ -57,7 +58,8 @@
 
 #define DEBUGFS_ADD_BOOL(name, parent, ptr) do {                        \
 	dbgfs->dbgfs_##parent##_files.file_##name =                     \
-	debugfs_create_bool(#name, 0644, dbgfs->dir_##parent, ptr);     \
+	debugfs_create_bool(#name, S_IWUSR | S_IRUSR,                   \
+			    dbgfs->dir_##parent, ptr);                  \
 	if (IS_ERR(dbgfs->dbgfs_##parent##_files.file_##name)		\
 			|| !dbgfs->dbgfs_##parent##_files.file_##name)	\
 		goto err;                                               \
@@ -65,7 +67,7 @@
 
 #define DEBUGFS_ADD_X32(name, parent, ptr) do {                        \
 	dbgfs->dbgfs_##parent##_files.file_##name =                     \
-	debugfs_create_x32(#name, 0444, dbgfs->dir_##parent, ptr);     \
+	debugfs_create_x32(#name, S_IRUSR, dbgfs->dir_##parent, ptr);   \
 	if (IS_ERR(dbgfs->dbgfs_##parent##_files.file_##name)		\
 			|| !dbgfs->dbgfs_##parent##_files.file_##name)	\
 		goto err;                                               \
-- 
cgit v1.2.3


From 5905a1aa71488b5f78822100c865ed7c4f9fcd8f Mon Sep 17 00:00:00 2001
From: Reinette Chatre <reinette.chatre@intel.com>
Date: Thu, 9 Jul 2009 10:33:40 -0700
Subject: iwl3945: cleanup number of queues settings

* Rename maximum number of queue (TFD_QUEUE_MAX) to IWL39_NUM_QUEUES to
  be consistent with rest of iwlwifi.
* Remove unused defines.
* Fix loops that iterate over number of TX queues to stop when maximum is reached
  (currently it is maximum + 1).
* Remove queues_num module parameter as it is not used.

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-3945-hw.h  |  7 ++-----
 drivers/net/wireless/iwlwifi/iwl-3945.c     |  8 ++++----
 drivers/net/wireless/iwlwifi/iwl-3945.h     |  3 ---
 drivers/net/wireless/iwlwifi/iwl3945-base.c | 15 +--------------
 4 files changed, 7 insertions(+), 26 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-3945-hw.h b/drivers/net/wireless/iwlwifi/iwl-3945-hw.h
index 73f93a0ff2df..b569c6f38e5c 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945-hw.h
+++ b/drivers/net/wireless/iwlwifi/iwl-3945-hw.h
@@ -232,9 +232,8 @@ struct iwl3945_eeprom {
 #define PCI_CFG_REV_ID_BIT_BASIC_SKU                (0x40)	/* bit 6    */
 #define PCI_CFG_REV_ID_BIT_RTP                      (0x80)	/* bit 7    */
 
-#define TFD_QUEUE_MIN           0
-#define TFD_QUEUE_MAX           5	/* 4 DATA + 1 CMD */
-
+/* 4 DATA + 1 CMD. There are 2 HCCA queues that are not used. */
+#define IWL39_NUM_QUEUES        5
 #define IWL_NUM_SCAN_RATES         (2)
 
 #define IWL_DEFAULT_TX_RETRY  15
@@ -280,8 +279,6 @@ struct iwl3945_eeprom {
 /* Size of uCode instruction memory in bootstrap state machine */
 #define IWL39_MAX_BSM_SIZE IWL39_RTC_INST_SIZE
 
-#define IWL39_MAX_NUM_QUEUES	8
-
 static inline int iwl3945_hw_valid_rtc_data_addr(u32 addr)
 {
 	return (addr >= IWL39_RTC_DATA_LOWER_BOUND) &&
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c
index b0246dbda99a..1227ed2960fb 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945.c
@@ -963,7 +963,7 @@ static int iwl3945_txq_ctx_reset(struct iwl_priv *priv)
 		goto error;
 
 	/* Tx queue(s) */
-	for (txq_id = 0; txq_id <= priv->hw_params.max_txq_num; txq_id++) {
+	for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++) {
 		slots_num = (txq_id == IWL_CMD_QUEUE_NUM) ?
 				TFD_CMD_SLOTS : TFD_TX_CMD_SLOTS;
 		rc = iwl_tx_queue_init(priv, &priv->txq[txq_id], slots_num,
@@ -1140,7 +1140,7 @@ void iwl3945_hw_txq_ctx_free(struct iwl_priv *priv)
 	int txq_id;
 
 	/* Tx queues */
-	for (txq_id = 0; txq_id <= priv->hw_params.max_txq_num; txq_id++)
+	for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++)
 		if (txq_id == IWL_CMD_QUEUE_NUM)
 			iwl_cmd_queue_free(priv);
 		else
@@ -1156,7 +1156,7 @@ void iwl3945_hw_txq_ctx_stop(struct iwl_priv *priv)
 	iwl_write_prph(priv, ALM_SCD_MODE_REG, 0);
 
 	/* reset TFD queues */
-	for (txq_id = 0; txq_id <= priv->hw_params.max_txq_num; txq_id++) {
+	for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++) {
 		iwl_write_direct32(priv, FH39_TCSR_CONFIG(txq_id), 0x0);
 		iwl_poll_direct_bit(priv, FH39_TSSR_TX_STATUS,
 				FH39_TSSR_TX_STATUS_REG_MSK_CHNL_IDLE(txq_id),
@@ -2552,7 +2552,7 @@ int iwl3945_hw_set_hw_params(struct iwl_priv *priv)
 	}
 
 	/* Assign number of Usable TX queues */
-	priv->hw_params.max_txq_num = TFD_QUEUE_MAX;
+	priv->hw_params.max_txq_num = IWL39_NUM_QUEUES;
 
 	priv->hw_params.tfd_size = sizeof(struct iwl3945_tfd);
 	priv->hw_params.rx_buf_size = IWL_RX_BUF_SIZE_3K;
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.h b/drivers/net/wireless/iwlwifi/iwl-3945.h
index fbb3a573463e..f2ffc48cbaf8 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.h
+++ b/drivers/net/wireless/iwlwifi/iwl-3945.h
@@ -111,9 +111,6 @@ enum iwl3945_antenna {
 #define IWL_TX_FIFO_HCCA_2	6
 #define IWL_TX_FIFO_NONE	7
 
-/* Minimum number of queues. MAX_NUM is defined in hw specific files */
-#define IWL_MIN_NUM_QUEUES	4
-
 #define IEEE80211_DATA_LEN              2304
 #define IEEE80211_4ADDR_LEN             30
 #define IEEE80211_HLEN                  (IEEE80211_4ADDR_LEN)
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index 7ff95f80b817..c9b3ea927144 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -89,7 +89,7 @@ MODULE_LICENSE("GPL");
 
  /* module parameters */
 struct iwl_mod_params iwl3945_mod_params = {
-	.num_of_queues = IWL39_MAX_NUM_QUEUES,
+	.num_of_queues = IWL39_NUM_QUEUES, /* Not used */
 	.sw_crypto = 1,
 	.restart_fw = 1,
 	/* the rest are 0 by default */
@@ -3947,15 +3947,6 @@ static int iwl3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e
 	priv = hw->priv;
 	SET_IEEE80211_DEV(hw, &pdev->dev);
 
-	if ((iwl3945_mod_params.num_of_queues > IWL39_MAX_NUM_QUEUES) ||
-	     (iwl3945_mod_params.num_of_queues < IWL_MIN_NUM_QUEUES)) {
-		IWL_ERR(priv,
-			"invalid queues_num, should be between %d and %d\n",
-			IWL_MIN_NUM_QUEUES, IWL39_MAX_NUM_QUEUES);
-		err = -EINVAL;
-		goto out_ieee80211_free_hw;
-	}
-
 	/*
 	 * Disabling hardware scan means that mac80211 will perform scans
 	 * "the hard way", rather than using device's scan.
@@ -4272,10 +4263,6 @@ module_param_named(debug, iwl3945_mod_params.debug, uint, 0444);
 MODULE_PARM_DESC(debug, "debug output mask");
 module_param_named(disable_hw_scan, iwl3945_mod_params.disable_hw_scan, int, 0444);
 MODULE_PARM_DESC(disable_hw_scan, "disable hardware scanning (default 0)");
-
-module_param_named(queues_num, iwl3945_mod_params.num_of_queues, int, 0444);
-MODULE_PARM_DESC(queues_num, "number of hw queues.");
-
 module_param_named(fw_restart3945, iwl3945_mod_params.restart_fw, int, 0444);
 MODULE_PARM_DESC(fw_restart3945, "restart firmware in case of error");
 
-- 
cgit v1.2.3


From 01a7e08436929271c6173b5daf3e193ef5b3561a Mon Sep 17 00:00:00 2001
From: Reinette Chatre <reinette.chatre@intel.com>
Date: Thu, 9 Jul 2009 10:33:41 -0700
Subject: iwlagn: fix minimum number of queues setting

We need to provide a reasonable minimum that will result in a
working setup if used. Set minimum to be 10 to provide for
4 standard TX queues + 1 command queue + 2 (unused) HCCA queues +
4 HT queues (one per AC).

We allow the user to change the number of queues used via a module
parameter and use this minimum value to check if it is valid. Without
this patch a user can select a value for the number of queues that
will result in a failing setup.

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Reviewed-by: Tomas Winkler <tomas.winkler@intel.com>
Acked-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-dev.h | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index 1a2fe37d4735..b989d5c08d34 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -258,8 +258,10 @@ struct iwl_channel_info {
 #define IWL_TX_FIFO_HCCA_2	6
 #define IWL_TX_FIFO_NONE	7
 
-/* Minimum number of queues. MAX_NUM is defined in hw specific files */
-#define IWL_MIN_NUM_QUEUES	4
+/* Minimum number of queues. MAX_NUM is defined in hw specific files.
+ * Set the minimum to accommodate the 4 standard TX queues, 1 command
+ * queue, 2 (unused) HCCA queues, and 4 HT queues (one for each AC) */
+#define IWL_MIN_NUM_QUEUES	10
 
 /* Power management (not Tx power) structures */
 
-- 
cgit v1.2.3


From a94ca4e7af0e6b63ef5345750fad8e1400274ba4 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Tue, 14 Jul 2009 15:48:11 +0200
Subject: iwlwifi: make some logging functions static/unexport

iwl_dump_nic_error_log can be static and iwl_dump_nic_event_log
doesn't need to be exported.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-core.c | 367 ++++++++++++++++----------------
 drivers/net/wireless/iwlwifi/iwl-core.h |   1 -
 2 files changed, 182 insertions(+), 186 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index d5cd9a20edca..b82480a51782 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -1290,6 +1290,188 @@ static void iwl_print_rx_config_cmd(struct iwl_priv *priv)
 }
 #endif
 
+static const char *desc_lookup_text[] = {
+	"OK",
+	"FAIL",
+	"BAD_PARAM",
+	"BAD_CHECKSUM",
+	"NMI_INTERRUPT_WDG",
+	"SYSASSERT",
+	"FATAL_ERROR",
+	"BAD_COMMAND",
+	"HW_ERROR_TUNE_LOCK",
+	"HW_ERROR_TEMPERATURE",
+	"ILLEGAL_CHAN_FREQ",
+	"VCC_NOT_STABLE",
+	"FH_ERROR",
+	"NMI_INTERRUPT_HOST",
+	"NMI_INTERRUPT_ACTION_PT",
+	"NMI_INTERRUPT_UNKNOWN",
+	"UCODE_VERSION_MISMATCH",
+	"HW_ERROR_ABS_LOCK",
+	"HW_ERROR_CAL_LOCK_FAIL",
+	"NMI_INTERRUPT_INST_ACTION_PT",
+	"NMI_INTERRUPT_DATA_ACTION_PT",
+	"NMI_TRM_HW_ER",
+	"NMI_INTERRUPT_TRM",
+	"NMI_INTERRUPT_BREAK_POINT"
+	"DEBUG_0",
+	"DEBUG_1",
+	"DEBUG_2",
+	"DEBUG_3",
+	"UNKNOWN"
+};
+
+static const char *desc_lookup(int i)
+{
+	int max = ARRAY_SIZE(desc_lookup_text) - 1;
+
+	if (i < 0 || i > max)
+		i = max;
+
+	return desc_lookup_text[i];
+}
+
+#define ERROR_START_OFFSET  (1 * sizeof(u32))
+#define ERROR_ELEM_SIZE     (7 * sizeof(u32))
+
+static void iwl_dump_nic_error_log(struct iwl_priv *priv)
+{
+	u32 data2, line;
+	u32 desc, time, count, base, data1;
+	u32 blink1, blink2, ilink1, ilink2;
+
+	if (priv->ucode_type == UCODE_INIT)
+		base = le32_to_cpu(priv->card_alive_init.error_event_table_ptr);
+	else
+		base = le32_to_cpu(priv->card_alive.error_event_table_ptr);
+
+	if (!priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) {
+		IWL_ERR(priv, "Not valid error log pointer 0x%08X\n", base);
+		return;
+	}
+
+	count = iwl_read_targ_mem(priv, base);
+
+	if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) {
+		IWL_ERR(priv, "Start IWL Error Log Dump:\n");
+		IWL_ERR(priv, "Status: 0x%08lX, count: %d\n",
+			priv->status, count);
+	}
+
+	desc = iwl_read_targ_mem(priv, base + 1 * sizeof(u32));
+	blink1 = iwl_read_targ_mem(priv, base + 3 * sizeof(u32));
+	blink2 = iwl_read_targ_mem(priv, base + 4 * sizeof(u32));
+	ilink1 = iwl_read_targ_mem(priv, base + 5 * sizeof(u32));
+	ilink2 = iwl_read_targ_mem(priv, base + 6 * sizeof(u32));
+	data1 = iwl_read_targ_mem(priv, base + 7 * sizeof(u32));
+	data2 = iwl_read_targ_mem(priv, base + 8 * sizeof(u32));
+	line = iwl_read_targ_mem(priv, base + 9 * sizeof(u32));
+	time = iwl_read_targ_mem(priv, base + 11 * sizeof(u32));
+
+	IWL_ERR(priv, "Desc                               Time       "
+		"data1      data2      line\n");
+	IWL_ERR(priv, "%-28s (#%02d) %010u 0x%08X 0x%08X %u\n",
+		desc_lookup(desc), desc, time, data1, data2, line);
+	IWL_ERR(priv, "blink1  blink2  ilink1  ilink2\n");
+	IWL_ERR(priv, "0x%05X 0x%05X 0x%05X 0x%05X\n", blink1, blink2,
+		ilink1, ilink2);
+
+}
+
+#define EVENT_START_OFFSET  (4 * sizeof(u32))
+
+/**
+ * iwl_print_event_log - Dump error event log to syslog
+ *
+ */
+static void iwl_print_event_log(struct iwl_priv *priv, u32 start_idx,
+				u32 num_events, u32 mode)
+{
+	u32 i;
+	u32 base;       /* SRAM byte address of event log header */
+	u32 event_size; /* 2 u32s, or 3 u32s if timestamp recorded */
+	u32 ptr;        /* SRAM byte address of log data */
+	u32 ev, time, data; /* event log data */
+
+	if (num_events == 0)
+		return;
+	if (priv->ucode_type == UCODE_INIT)
+		base = le32_to_cpu(priv->card_alive_init.log_event_table_ptr);
+	else
+		base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
+
+	if (mode == 0)
+		event_size = 2 * sizeof(u32);
+	else
+		event_size = 3 * sizeof(u32);
+
+	ptr = base + EVENT_START_OFFSET + (start_idx * event_size);
+
+	/* "time" is actually "data" for mode 0 (no timestamp).
+	* place event id # at far right for easier visual parsing. */
+	for (i = 0; i < num_events; i++) {
+		ev = iwl_read_targ_mem(priv, ptr);
+		ptr += sizeof(u32);
+		time = iwl_read_targ_mem(priv, ptr);
+		ptr += sizeof(u32);
+		if (mode == 0) {
+			/* data, ev */
+			IWL_ERR(priv, "EVT_LOG:0x%08x:%04u\n", time, ev);
+		} else {
+			data = iwl_read_targ_mem(priv, ptr);
+			ptr += sizeof(u32);
+			IWL_ERR(priv, "EVT_LOGT:%010u:0x%08x:%04u\n",
+					time, data, ev);
+		}
+	}
+}
+
+void iwl_dump_nic_event_log(struct iwl_priv *priv)
+{
+	u32 base;       /* SRAM byte address of event log header */
+	u32 capacity;   /* event log capacity in # entries */
+	u32 mode;       /* 0 - no timestamp, 1 - timestamp recorded */
+	u32 num_wraps;  /* # times uCode wrapped to top of log */
+	u32 next_entry; /* index of next entry to be written by uCode */
+	u32 size;       /* # entries that we'll print */
+
+	if (priv->ucode_type == UCODE_INIT)
+		base = le32_to_cpu(priv->card_alive_init.log_event_table_ptr);
+	else
+		base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
+
+	if (!priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) {
+		IWL_ERR(priv, "Invalid event log pointer 0x%08X\n", base);
+		return;
+	}
+
+	/* event log header */
+	capacity = iwl_read_targ_mem(priv, base);
+	mode = iwl_read_targ_mem(priv, base + (1 * sizeof(u32)));
+	num_wraps = iwl_read_targ_mem(priv, base + (2 * sizeof(u32)));
+	next_entry = iwl_read_targ_mem(priv, base + (3 * sizeof(u32)));
+
+	size = num_wraps ? capacity : next_entry;
+
+	/* bail out if nothing in log */
+	if (size == 0) {
+		IWL_ERR(priv, "Start IWL Event Log Dump: nothing in log\n");
+		return;
+	}
+
+	IWL_ERR(priv, "Start IWL Event Log Dump: display count %d, wraps %d\n",
+			size, num_wraps);
+
+	/* if uCode has wrapped back to top of log, start at the oldest entry,
+	 * i.e the next one that uCode would fill. */
+	if (num_wraps)
+		iwl_print_event_log(priv, next_entry,
+					capacity - next_entry, mode);
+	/* (then/else) start at top of log */
+	iwl_print_event_log(priv, 0, next_entry, mode);
+
+}
 /**
  * iwl_irq_handle_error - called for HW or SW error interrupt from card
  */
@@ -2040,191 +2222,6 @@ int iwl_verify_ucode(struct iwl_priv *priv)
 EXPORT_SYMBOL(iwl_verify_ucode);
 
 
-static const char *desc_lookup_text[] = {
-	"OK",
-	"FAIL",
-	"BAD_PARAM",
-	"BAD_CHECKSUM",
-	"NMI_INTERRUPT_WDG",
-	"SYSASSERT",
-	"FATAL_ERROR",
-	"BAD_COMMAND",
-	"HW_ERROR_TUNE_LOCK",
-	"HW_ERROR_TEMPERATURE",
-	"ILLEGAL_CHAN_FREQ",
-	"VCC_NOT_STABLE",
-	"FH_ERROR",
-	"NMI_INTERRUPT_HOST",
-	"NMI_INTERRUPT_ACTION_PT",
-	"NMI_INTERRUPT_UNKNOWN",
-	"UCODE_VERSION_MISMATCH",
-	"HW_ERROR_ABS_LOCK",
-	"HW_ERROR_CAL_LOCK_FAIL",
-	"NMI_INTERRUPT_INST_ACTION_PT",
-	"NMI_INTERRUPT_DATA_ACTION_PT",
-	"NMI_TRM_HW_ER",
-	"NMI_INTERRUPT_TRM",
-	"NMI_INTERRUPT_BREAK_POINT"
-	"DEBUG_0",
-	"DEBUG_1",
-	"DEBUG_2",
-	"DEBUG_3",
-	"UNKNOWN"
-};
-
-static const char *desc_lookup(int i)
-{
-	int max = ARRAY_SIZE(desc_lookup_text) - 1;
-
-	if (i < 0 || i > max)
-		i = max;
-
-	return desc_lookup_text[i];
-}
-
-#define ERROR_START_OFFSET  (1 * sizeof(u32))
-#define ERROR_ELEM_SIZE     (7 * sizeof(u32))
-
-void iwl_dump_nic_error_log(struct iwl_priv *priv)
-{
-	u32 data2, line;
-	u32 desc, time, count, base, data1;
-	u32 blink1, blink2, ilink1, ilink2;
-
-	if (priv->ucode_type == UCODE_INIT)
-		base = le32_to_cpu(priv->card_alive_init.error_event_table_ptr);
-	else
-		base = le32_to_cpu(priv->card_alive.error_event_table_ptr);
-
-	if (!priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) {
-		IWL_ERR(priv, "Not valid error log pointer 0x%08X\n", base);
-		return;
-	}
-
-	count = iwl_read_targ_mem(priv, base);
-
-	if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) {
-		IWL_ERR(priv, "Start IWL Error Log Dump:\n");
-		IWL_ERR(priv, "Status: 0x%08lX, count: %d\n",
-			priv->status, count);
-	}
-
-	desc = iwl_read_targ_mem(priv, base + 1 * sizeof(u32));
-	blink1 = iwl_read_targ_mem(priv, base + 3 * sizeof(u32));
-	blink2 = iwl_read_targ_mem(priv, base + 4 * sizeof(u32));
-	ilink1 = iwl_read_targ_mem(priv, base + 5 * sizeof(u32));
-	ilink2 = iwl_read_targ_mem(priv, base + 6 * sizeof(u32));
-	data1 = iwl_read_targ_mem(priv, base + 7 * sizeof(u32));
-	data2 = iwl_read_targ_mem(priv, base + 8 * sizeof(u32));
-	line = iwl_read_targ_mem(priv, base + 9 * sizeof(u32));
-	time = iwl_read_targ_mem(priv, base + 11 * sizeof(u32));
-
-	IWL_ERR(priv, "Desc                               Time       "
-		"data1      data2      line\n");
-	IWL_ERR(priv, "%-28s (#%02d) %010u 0x%08X 0x%08X %u\n",
-		desc_lookup(desc), desc, time, data1, data2, line);
-	IWL_ERR(priv, "blink1  blink2  ilink1  ilink2\n");
-	IWL_ERR(priv, "0x%05X 0x%05X 0x%05X 0x%05X\n", blink1, blink2,
-		ilink1, ilink2);
-
-}
-EXPORT_SYMBOL(iwl_dump_nic_error_log);
-
-#define EVENT_START_OFFSET  (4 * sizeof(u32))
-
-/**
- * iwl_print_event_log - Dump error event log to syslog
- *
- */
-static void iwl_print_event_log(struct iwl_priv *priv, u32 start_idx,
-				u32 num_events, u32 mode)
-{
-	u32 i;
-	u32 base;       /* SRAM byte address of event log header */
-	u32 event_size; /* 2 u32s, or 3 u32s if timestamp recorded */
-	u32 ptr;        /* SRAM byte address of log data */
-	u32 ev, time, data; /* event log data */
-
-	if (num_events == 0)
-		return;
-	if (priv->ucode_type == UCODE_INIT)
-		base = le32_to_cpu(priv->card_alive_init.log_event_table_ptr);
-	else
-		base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
-
-	if (mode == 0)
-		event_size = 2 * sizeof(u32);
-	else
-		event_size = 3 * sizeof(u32);
-
-	ptr = base + EVENT_START_OFFSET + (start_idx * event_size);
-
-	/* "time" is actually "data" for mode 0 (no timestamp).
-	* place event id # at far right for easier visual parsing. */
-	for (i = 0; i < num_events; i++) {
-		ev = iwl_read_targ_mem(priv, ptr);
-		ptr += sizeof(u32);
-		time = iwl_read_targ_mem(priv, ptr);
-		ptr += sizeof(u32);
-		if (mode == 0) {
-			/* data, ev */
-			IWL_ERR(priv, "EVT_LOG:0x%08x:%04u\n", time, ev);
-		} else {
-			data = iwl_read_targ_mem(priv, ptr);
-			ptr += sizeof(u32);
-			IWL_ERR(priv, "EVT_LOGT:%010u:0x%08x:%04u\n",
-					time, data, ev);
-		}
-	}
-}
-
-void iwl_dump_nic_event_log(struct iwl_priv *priv)
-{
-	u32 base;       /* SRAM byte address of event log header */
-	u32 capacity;   /* event log capacity in # entries */
-	u32 mode;       /* 0 - no timestamp, 1 - timestamp recorded */
-	u32 num_wraps;  /* # times uCode wrapped to top of log */
-	u32 next_entry; /* index of next entry to be written by uCode */
-	u32 size;       /* # entries that we'll print */
-
-	if (priv->ucode_type == UCODE_INIT)
-		base = le32_to_cpu(priv->card_alive_init.log_event_table_ptr);
-	else
-		base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
-
-	if (!priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) {
-		IWL_ERR(priv, "Invalid event log pointer 0x%08X\n", base);
-		return;
-	}
-
-	/* event log header */
-	capacity = iwl_read_targ_mem(priv, base);
-	mode = iwl_read_targ_mem(priv, base + (1 * sizeof(u32)));
-	num_wraps = iwl_read_targ_mem(priv, base + (2 * sizeof(u32)));
-	next_entry = iwl_read_targ_mem(priv, base + (3 * sizeof(u32)));
-
-	size = num_wraps ? capacity : next_entry;
-
-	/* bail out if nothing in log */
-	if (size == 0) {
-		IWL_ERR(priv, "Start IWL Event Log Dump: nothing in log\n");
-		return;
-	}
-
-	IWL_ERR(priv, "Start IWL Event Log Dump: display count %d, wraps %d\n",
-			size, num_wraps);
-
-	/* if uCode has wrapped back to top of log, start at the oldest entry,
-	 * i.e the next one that uCode would fill. */
-	if (num_wraps)
-		iwl_print_event_log(priv, next_entry,
-					capacity - next_entry, mode);
-	/* (then/else) start at top of log */
-	iwl_print_event_log(priv, 0, next_entry, mode);
-
-}
-EXPORT_SYMBOL(iwl_dump_nic_event_log);
-
 void iwl_rf_kill_ct_config(struct iwl_priv *priv)
 {
 	struct iwl_ct_kill_config cmd;
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h
index a658410e66a4..640c4644a165 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.h
+++ b/drivers/net/wireless/iwlwifi/iwl-core.h
@@ -472,7 +472,6 @@ int iwl_pci_resume(struct pci_dev *pdev);
 /*****************************************************
 *  Error Handling Debugging
 ******************************************************/
-void iwl_dump_nic_error_log(struct iwl_priv *priv);
 void iwl_dump_nic_event_log(struct iwl_priv *priv);
 void iwl_clear_isr_stats(struct iwl_priv *priv);
 
-- 
cgit v1.2.3


From 0ab216d9727c0728c8b5f9ad627b6955570303d7 Mon Sep 17 00:00:00 2001
From: "Luis R. Rodriguez" <lrodriguez@atheros.com>
Date: Tue, 14 Jul 2009 20:13:55 -0400
Subject: iwlwifi: remove rs_get_rate workaround

This removes the work around implemented for transmitting on
an unsupported band on iwlwifi. This was added via the patch:

8e1856e82cb8f541e925738bebfbc473420cda68:
iwlwifi: fix rs_get_rate WARN_ON()

Cc: Mohamed Abbas <mohamed.abbas@intel.com>
Cc: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-3945-rs.c | 12 ++----------
 drivers/net/wireless/iwlwifi/iwl-agn-rs.c  | 11 +----------
 2 files changed, 3 insertions(+), 20 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-3945-rs.c b/drivers/net/wireless/iwlwifi/iwl-3945-rs.c
index 5eb538d18a80..b23fd537f21f 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945-rs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945-rs.c
@@ -674,28 +674,20 @@ static void rs_get_rate(void *priv_r, struct ieee80211_sta *sta,
 	unsigned long flags;
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
 	u16 fc;
-	u16 rate_mask = 0;
+	u16 rate_mask = sta ? sta->supp_rates[sband->band] : 0;
 	s8 max_rate_idx = -1;
 	struct iwl_priv *priv = (struct iwl_priv *)priv_r;
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 
 	IWL_DEBUG_RATE(priv, "enter\n");
 
-	if (sta)
-		rate_mask = sta->supp_rates[sband->band];
-
 	/* Send management frames and NO_ACK data using lowest rate. */
 	fc = le16_to_cpu(hdr->frame_control);
 	if ((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA ||
 	    info->flags & IEEE80211_TX_CTL_NO_ACK ||
 	    !sta || !priv_sta) {
 		IWL_DEBUG_RATE(priv, "leave: No STA priv data to update!\n");
-		if (!rate_mask)
-			info->control.rates[0].idx =
-					rate_lowest_index(sband, NULL);
-		else
-			info->control.rates[0].idx =
-					rate_lowest_index(sband, sta);
+		info->control.rates[0].idx = rate_lowest_index(sband, sta);
 		if (info->flags & IEEE80211_TX_CTL_NO_ACK)
 			info->control.rates[0].count = 1;
 		return;
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
index ff20e5048a55..3fea027f35d1 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
@@ -2466,7 +2466,6 @@ static void rs_get_rate(void *priv_r, struct ieee80211_sta *sta, void *priv_sta,
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 	struct iwl_lq_sta *lq_sta = priv_sta;
 	int rate_idx;
-	u64 mask_bit = 0;
 
 	IWL_DEBUG_RATE_LIMIT(priv, "rate scale calculate new rate for skb\n");
 
@@ -2481,18 +2480,10 @@ static void rs_get_rate(void *priv_r, struct ieee80211_sta *sta, void *priv_sta,
 			lq_sta->max_rate_idx = -1;
 	}
 
-	if (sta)
-		mask_bit = sta->supp_rates[sband->band];
-
 	/* Send management frames and NO_ACK data using lowest rate. */
 	if (!ieee80211_is_data(hdr->frame_control) ||
 	    info->flags & IEEE80211_TX_CTL_NO_ACK || !sta || !lq_sta) {
-		if (!mask_bit)
-			info->control.rates[0].idx =
-					rate_lowest_index(sband, NULL);
-		else
-			info->control.rates[0].idx =
-					rate_lowest_index(sband, sta);
+		info->control.rates[0].idx = rate_lowest_index(sband, sta);
 		if (info->flags & IEEE80211_TX_CTL_NO_ACK)
 			info->control.rates[0].count = 1;
 		return;
-- 
cgit v1.2.3


From 943ab70f6aebfdc0005ef7e58ae982e9ec22224b Mon Sep 17 00:00:00 2001
From: "Luis R. Rodriguez" <lrodriguez@atheros.com>
Date: Tue, 14 Jul 2009 20:14:07 -0400
Subject: iwlwifi: use ieee80211_is_data(fc)

iwl-agn-rs.c already uses this.

Cc: Zhu Yi <yi.zhu@intel.com>
Cc: Reinette Chatre <reinette.chatre@intel.com>
Cc: ipw3945-devel@lists.sourceforge.net
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-3945-rs.c | 7 +++----
 drivers/net/wireless/iwlwifi/iwl-sta.c     | 5 ++---
 2 files changed, 5 insertions(+), 7 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-3945-rs.c b/drivers/net/wireless/iwlwifi/iwl-3945-rs.c
index b23fd537f21f..2b776924d5e7 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945-rs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945-rs.c
@@ -673,7 +673,7 @@ static void rs_get_rate(void *priv_r, struct ieee80211_sta *sta,
 	s8 scale_action = 0;
 	unsigned long flags;
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
-	u16 fc;
+	__le16 fc;
 	u16 rate_mask = sta ? sta->supp_rates[sband->band] : 0;
 	s8 max_rate_idx = -1;
 	struct iwl_priv *priv = (struct iwl_priv *)priv_r;
@@ -682,9 +682,8 @@ static void rs_get_rate(void *priv_r, struct ieee80211_sta *sta,
 	IWL_DEBUG_RATE(priv, "enter\n");
 
 	/* Send management frames and NO_ACK data using lowest rate. */
-	fc = le16_to_cpu(hdr->frame_control);
-	if ((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA ||
-	    info->flags & IEEE80211_TX_CTL_NO_ACK ||
+	fc = hdr->frame_control;
+	if (!ieee80211_is_data(fc) || info->flags & IEEE80211_TX_CTL_NO_ACK ||
 	    !sta || !priv_sta) {
 		IWL_DEBUG_RATE(priv, "leave: No STA priv data to update!\n");
 		info->control.rates[0].idx = rate_lowest_index(sband, sta);
diff --git a/drivers/net/wireless/iwlwifi/iwl-sta.c b/drivers/net/wireless/iwlwifi/iwl-sta.c
index 2addf735b193..afa1633602a7 100644
--- a/drivers/net/wireless/iwlwifi/iwl-sta.c
+++ b/drivers/net/wireless/iwlwifi/iwl-sta.c
@@ -1044,11 +1044,10 @@ EXPORT_SYMBOL(iwl_rxon_add_station);
 int iwl_get_sta_id(struct iwl_priv *priv, struct ieee80211_hdr *hdr)
 {
 	int sta_id;
-	u16 fc = le16_to_cpu(hdr->frame_control);
+	__le16 fc = hdr->frame_control;
 
 	/* If this frame is broadcast or management, use broadcast station id */
-	if (((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA) ||
-	    is_multicast_ether_addr(hdr->addr1))
+	if (!ieee80211_is_data(fc) ||  is_multicast_ether_addr(hdr->addr1))
 		return priv->hw_params.bcast_sta_id;
 
 	switch (priv->iw_mode) {
-- 
cgit v1.2.3


From 4c6d4f5c33fbe19b134c1af43af166fee79eb986 Mon Sep 17 00:00:00 2001
From: "Luis R. Rodriguez" <lrodriguez@atheros.com>
Date: Thu, 16 Jul 2009 10:05:41 -0700
Subject: mac80211: add helper for management / no-ack frame rate decision

All current rate control algorithms agree to send management and no-ack
frames at the lowest rate. They also agree to do this when sta
and the private rate control data is NULL. We add a hlper to mac80211
for this and simplify the rate control algorithm code.

Developers wishing to make enhancements to rate control algorithms
are for broadcast/multicast can opt to not use this in their
gate_rate() mac80211 callback.

Cc: Zhu Yi <yi.zhu@intel.com>
Acked-by: Reinette Chatre <reinette.chatre@intel.com>
Cc: ipw3945-devel@lists.sourceforge.net
Cc: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Felix Fietkau <nbd@openwrt.org>
Cc: Derek Smithies <derek@indranet.co.nz>
Cc: Chittajit Mitra <Chittajit.Mitra@Atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-3945-rs.c | 13 +++----------
 drivers/net/wireless/iwlwifi/iwl-agn-rs.c  |  7 +------
 2 files changed, 4 insertions(+), 16 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-3945-rs.c b/drivers/net/wireless/iwlwifi/iwl-3945-rs.c
index 2b776924d5e7..a16bd4147eac 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945-rs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945-rs.c
@@ -673,7 +673,6 @@ static void rs_get_rate(void *priv_r, struct ieee80211_sta *sta,
 	s8 scale_action = 0;
 	unsigned long flags;
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
-	__le16 fc;
 	u16 rate_mask = sta ? sta->supp_rates[sband->band] : 0;
 	s8 max_rate_idx = -1;
 	struct iwl_priv *priv = (struct iwl_priv *)priv_r;
@@ -681,16 +680,10 @@ static void rs_get_rate(void *priv_r, struct ieee80211_sta *sta,
 
 	IWL_DEBUG_RATE(priv, "enter\n");
 
-	/* Send management frames and NO_ACK data using lowest rate. */
-	fc = hdr->frame_control;
-	if (!ieee80211_is_data(fc) || info->flags & IEEE80211_TX_CTL_NO_ACK ||
-	    !sta || !priv_sta) {
-		IWL_DEBUG_RATE(priv, "leave: No STA priv data to update!\n");
-		info->control.rates[0].idx = rate_lowest_index(sband, sta);
-		if (info->flags & IEEE80211_TX_CTL_NO_ACK)
-			info->control.rates[0].count = 1;
+	if (rate_control_send_low(sta, priv_sta, txrc))
 		return;
-	}
+
+	rate_mask = sta->supp_rates[sband->band];
 
 	/* get user max rate if set */
 	max_rate_idx = txrc->max_rate_idx;
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
index 3fea027f35d1..63280411fd58 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
@@ -2481,13 +2481,8 @@ static void rs_get_rate(void *priv_r, struct ieee80211_sta *sta, void *priv_sta,
 	}
 
 	/* Send management frames and NO_ACK data using lowest rate. */
-	if (!ieee80211_is_data(hdr->frame_control) ||
-	    info->flags & IEEE80211_TX_CTL_NO_ACK || !sta || !lq_sta) {
-		info->control.rates[0].idx = rate_lowest_index(sband, sta);
-		if (info->flags & IEEE80211_TX_CTL_NO_ACK)
-			info->control.rates[0].count = 1;
+	if (rate_control_send_low(sta, priv_sta, txrc))
 		return;
-	}
 
 	rate_idx  = lq_sta->last_txrate_idx;
 
-- 
cgit v1.2.3


From 02c06e4abc0680afd31bf481a803541556757fb6 Mon Sep 17 00:00:00 2001
From: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Date: Fri, 17 Jul 2009 09:30:14 -0700
Subject: iwlagn: modify digital SVR for 1000

On 1000, there are two Switching Voltage Regulators (SVR). The first one
apply digital voltage level (1.32V) for PCIe block and core. We need to
use this regulator to solve a stability issue related to noisy DC2DC
line in the silicon.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-5000.c | 7 +++++++
 drivers/net/wireless/iwlwifi/iwl-prph.h | 5 ++++-
 2 files changed, 11 insertions(+), 1 deletion(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c
index 85e8bac499a7..3f9da6e47108 100644
--- a/drivers/net/wireless/iwlwifi/iwl-5000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-5000.c
@@ -239,6 +239,13 @@ static void iwl5000_nic_config(struct iwl_priv *priv)
 				APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS,
 				~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS);
 
+	if ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_1000) {
+		/* Setting digital SVR for 1000 card to 1.32V */
+		iwl_set_bits_mask_prph(priv, APMG_DIGITAL_SVR_REG,
+					APMG_SVR_DIGITAL_VOLTAGE_1_32,
+					~APMG_SVR_VOLTAGE_CONFIG_BIT_MSK);
+	}
+
 	spin_unlock_irqrestore(&priv->lock, flags);
 }
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-prph.h b/drivers/net/wireless/iwlwifi/iwl-prph.h
index 3b9cac3fd216..d393e8f02102 100644
--- a/drivers/net/wireless/iwlwifi/iwl-prph.h
+++ b/drivers/net/wireless/iwlwifi/iwl-prph.h
@@ -80,6 +80,8 @@
 #define APMG_RFKILL_REG			(APMG_BASE + 0x0014)
 #define APMG_RTC_INT_STT_REG		(APMG_BASE + 0x001c)
 #define APMG_RTC_INT_MSK_REG		(APMG_BASE + 0x0020)
+#define APMG_DIGITAL_SVR_REG		(APMG_BASE + 0x0058)
+#define APMG_ANALOG_SVR_REG		(APMG_BASE + 0x006C)
 
 #define APMG_CLK_VAL_DMA_CLK_RQT	(0x00000200)
 #define APMG_CLK_VAL_BSM_CLK_RQT	(0x00000800)
@@ -91,7 +93,8 @@
 #define APMG_PS_CTRL_VAL_PWR_SRC_VMAIN		(0x00000000)
 #define APMG_PS_CTRL_VAL_PWR_SRC_MAX		(0x01000000) /* 3945 only */
 #define APMG_PS_CTRL_VAL_PWR_SRC_VAUX		(0x02000000)
-
+#define APMG_SVR_VOLTAGE_CONFIG_BIT_MSK	(0x000001E0) /* bit 8:5 */
+#define APMG_SVR_DIGITAL_VOLTAGE_1_32		(0x00000060)
 
 #define APMG_PCIDEV_STT_VAL_L1_ACT_DIS		(0x00000800)
 
-- 
cgit v1.2.3


From 244294e83f7637e31bbf64060301904860a32051 Mon Sep 17 00:00:00 2001
From: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Date: Fri, 17 Jul 2009 09:30:15 -0700
Subject: iwlwifi: fix rx signal quality reporting in dmesg

Fix quality incorrectly reported as signal strength value.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-rx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-rx.c b/drivers/net/wireless/iwlwifi/iwl-rx.c
index 66fe365dd08a..fc7edd1d34dc 100644
--- a/drivers/net/wireless/iwlwifi/iwl-rx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-rx.c
@@ -1065,7 +1065,7 @@ void iwl_rx_reply_rx(struct iwl_priv *priv,
 		iwl_dbg_report_frame(priv, rx_start, len, header, 1);
 #endif
 	IWL_DEBUG_STATS_LIMIT(priv, "Rssi %d, noise %d, qual %d, TSF %llu\n",
-		rx_status.signal, rx_status.noise, rx_status.signal,
+		rx_status.signal, rx_status.noise, rx_status.qual,
 		(unsigned long long)rx_status.mactime);
 
 	/*
-- 
cgit v1.2.3


From cc0f555d511a5fe9d4519334c8f674a1dbab9e3a Mon Sep 17 00:00:00 2001
From: Jay Sternberg <jay.e.sternberg@intel.com>
Date: Fri, 17 Jul 2009 09:30:16 -0700
Subject: iwlwifi: Handle new firmware file with ucode build number in header

Adding new API version to account for change to ucode file format.  New
header includes the build number of the ucode.  This build number is the
SVN revision thus allowing for exact correlation to the code that
generated it.

The header adds the build number so that older ucode images can also be
enhanced to include the build in the future.

some cleanup in iwl_read_ucode needed to ensure old header not used and
reduce unnecessary references through pointer with the data is already
in heap variable.

Signed-off-by: Jay Sternberg <jay.e.sternberg@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-3945.c     | 40 +++++++++++++++++++++
 drivers/net/wireless/iwlwifi/iwl-4965.c     | 39 ++++++++++++++++++++
 drivers/net/wireless/iwlwifi/iwl-5000.c     | 51 ++++++++++++++++++++++++++
 drivers/net/wireless/iwlwifi/iwl-6000.c     |  5 +--
 drivers/net/wireless/iwlwifi/iwl-agn.c      | 55 +++++++++++++++++------------
 drivers/net/wireless/iwlwifi/iwl-core.h     | 12 +++++++
 drivers/net/wireless/iwlwifi/iwl-dev.h      | 31 +++++++++++-----
 drivers/net/wireless/iwlwifi/iwl3945-base.c | 45 ++++++++++++-----------
 8 files changed, 224 insertions(+), 54 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c
index 1227ed2960fb..14a47c0a1583 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945.c
@@ -2786,11 +2786,50 @@ static int iwl3945_load_bsm(struct iwl_priv *priv)
 	return 0;
 }
 
+#define IWL3945_UCODE_GET(item)						\
+static u32 iwl3945_ucode_get_##item(const struct iwl_ucode_header *ucode,\
+				    u32 api_ver)			\
+{									\
+	return le32_to_cpu(ucode->u.v1.item);				\
+}
+
+static u32 iwl3945_ucode_get_header_size(u32 api_ver)
+{
+	return UCODE_HEADER_SIZE(1);
+}
+static u32 iwl3945_ucode_get_build(const struct iwl_ucode_header *ucode,
+				   u32 api_ver)
+{
+	return 0;
+}
+static u8 *iwl3945_ucode_get_data(const struct iwl_ucode_header *ucode,
+				  u32 api_ver)
+{
+	return (u8 *) ucode->u.v1.data;
+}
+
+IWL3945_UCODE_GET(inst_size);
+IWL3945_UCODE_GET(data_size);
+IWL3945_UCODE_GET(init_size);
+IWL3945_UCODE_GET(init_data_size);
+IWL3945_UCODE_GET(boot_size);
+
 static struct iwl_hcmd_ops iwl3945_hcmd = {
 	.rxon_assoc = iwl3945_send_rxon_assoc,
 	.commit_rxon = iwl3945_commit_rxon,
 };
 
+static struct iwl_ucode_ops iwl3945_ucode = {
+	.get_header_size = iwl3945_ucode_get_header_size,
+	.get_build = iwl3945_ucode_get_build,
+	.get_inst_size = iwl3945_ucode_get_inst_size,
+	.get_data_size = iwl3945_ucode_get_data_size,
+	.get_init_size = iwl3945_ucode_get_init_size,
+	.get_init_data_size = iwl3945_ucode_get_init_data_size,
+	.get_boot_size = iwl3945_ucode_get_boot_size,
+	.get_data = iwl3945_ucode_get_data,
+};
+
 static struct iwl_lib_ops iwl3945_lib = {
 	.txq_attach_buf_to_tfd = iwl3945_hw_txq_attach_buf_to_tfd,
 	.txq_free_tfd = iwl3945_hw_txq_free_tfd,
@@ -2831,6 +2870,7 @@ static struct iwl_hcmd_utils_ops iwl3945_hcmd_utils = {
 };
 
 static struct iwl_ops iwl3945_ops = {
+	.ucode = &iwl3945_ucode,
 	.lib = &iwl3945_lib,
 	.hcmd = &iwl3945_hcmd,
 	.utils = &iwl3945_hcmd_utils,
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c
index edbb0bfd8cb7..f4eb683aa2d5 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965.c
+++ b/drivers/net/wireless/iwlwifi/iwl-4965.c
@@ -2221,12 +2221,50 @@ static void iwl4965_cancel_deferred_work(struct iwl_priv *priv)
 	cancel_work_sync(&priv->txpower_work);
 }
 
+#define IWL4965_UCODE_GET(item)						\
+static u32 iwl4965_ucode_get_##item(const struct iwl_ucode_header *ucode,\
+				    u32 api_ver)			\
+{									\
+	return le32_to_cpu(ucode->u.v1.item);				\
+}
+
+static u32 iwl4965_ucode_get_header_size(u32 api_ver)
+{
+	return UCODE_HEADER_SIZE(1);
+}
+static u32 iwl4965_ucode_get_build(const struct iwl_ucode_header *ucode,
+				   u32 api_ver)
+{
+	return 0;
+}
+static u8 *iwl4965_ucode_get_data(const struct iwl_ucode_header *ucode,
+				  u32 api_ver)
+{
+	return (u8 *) ucode->u.v1.data;
+}
+
+IWL4965_UCODE_GET(inst_size);
+IWL4965_UCODE_GET(data_size);
+IWL4965_UCODE_GET(init_size);
+IWL4965_UCODE_GET(init_data_size);
+IWL4965_UCODE_GET(boot_size);
+
 static struct iwl_hcmd_ops iwl4965_hcmd = {
 	.rxon_assoc = iwl4965_send_rxon_assoc,
 	.commit_rxon = iwl_commit_rxon,
 	.set_rxon_chain = iwl_set_rxon_chain,
 };
 
+static struct iwl_ucode_ops iwl4965_ucode = {
+	.get_header_size = iwl4965_ucode_get_header_size,
+	.get_build = iwl4965_ucode_get_build,
+	.get_inst_size = iwl4965_ucode_get_inst_size,
+	.get_data_size = iwl4965_ucode_get_data_size,
+	.get_init_size = iwl4965_ucode_get_init_size,
+	.get_init_data_size = iwl4965_ucode_get_init_data_size,
+	.get_boot_size = iwl4965_ucode_get_boot_size,
+	.get_data = iwl4965_ucode_get_data,
+};
 static struct iwl_hcmd_utils_ops iwl4965_hcmd_utils = {
 	.get_hcmd_size = iwl4965_get_hcmd_size,
 	.build_addsta_hcmd = iwl4965_build_addsta_hcmd,
@@ -2287,6 +2325,7 @@ static struct iwl_lib_ops iwl4965_lib = {
 };
 
 static struct iwl_ops iwl4965_ops = {
+	.ucode = &iwl4965_ucode,
 	.lib = &iwl4965_lib,
 	.hcmd = &iwl4965_hcmd,
 	.utils = &iwl4965_hcmd_utils,
diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c
index 3f9da6e47108..74103cfcaceb 100644
--- a/drivers/net/wireless/iwlwifi/iwl-5000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-5000.c
@@ -1456,6 +1456,44 @@ int iwl5000_calc_rssi(struct iwl_priv *priv,
 	return max_rssi - agc - IWL49_RSSI_OFFSET;
 }
 
+#define IWL5000_UCODE_GET(item)						\
+static u32 iwl5000_ucode_get_##item(const struct iwl_ucode_header *ucode,\
+				    u32 api_ver)			\
+{									\
+	if (api_ver <= 2)						\
+		return le32_to_cpu(ucode->u.v1.item);			\
+	return le32_to_cpu(ucode->u.v2.item);				\
+}
+
+static u32 iwl5000_ucode_get_header_size(u32 api_ver)
+{
+	if (api_ver <= 2)
+		return UCODE_HEADER_SIZE(1);
+	return UCODE_HEADER_SIZE(2);
+}
+
+static u32 iwl5000_ucode_get_build(const struct iwl_ucode_header *ucode,
+				   u32 api_ver)
+{
+	if (api_ver <= 2)
+		return 0;
+	return le32_to_cpu(ucode->u.v2.build);
+}
+
+static u8 *iwl5000_ucode_get_data(const struct iwl_ucode_header *ucode,
+				  u32 api_ver)
+{
+	if (api_ver <= 2)
+		return (u8 *) ucode->u.v1.data;
+	return (u8 *) ucode->u.v2.data;
+}
+
+IWL5000_UCODE_GET(inst_size);
+IWL5000_UCODE_GET(data_size);
+IWL5000_UCODE_GET(init_size);
+IWL5000_UCODE_GET(init_data_size);
+IWL5000_UCODE_GET(boot_size);
+
 struct iwl_hcmd_ops iwl5000_hcmd = {
 	.rxon_assoc = iwl5000_send_rxon_assoc,
 	.commit_rxon = iwl_commit_rxon,
@@ -1471,6 +1509,17 @@ struct iwl_hcmd_utils_ops iwl5000_hcmd_utils = {
 	.calc_rssi = iwl5000_calc_rssi,
 };
 
+struct iwl_ucode_ops iwl5000_ucode = {
+	.get_header_size = iwl5000_ucode_get_header_size,
+	.get_build = iwl5000_ucode_get_build,
+	.get_inst_size = iwl5000_ucode_get_inst_size,
+	.get_data_size = iwl5000_ucode_get_data_size,
+	.get_init_size = iwl5000_ucode_get_init_size,
+	.get_init_data_size = iwl5000_ucode_get_init_data_size,
+	.get_boot_size = iwl5000_ucode_get_boot_size,
+	.get_data = iwl5000_ucode_get_data,
+};
+
 struct iwl_lib_ops iwl5000_lib = {
 	.set_hw_params = iwl5000_hw_set_hw_params,
 	.txq_update_byte_cnt_tbl = iwl5000_txq_update_byte_cnt_tbl,
@@ -1572,12 +1621,14 @@ static struct iwl_lib_ops iwl5150_lib = {
 };
 
 struct iwl_ops iwl5000_ops = {
+	.ucode = &iwl5000_ucode,
 	.lib = &iwl5000_lib,
 	.hcmd = &iwl5000_hcmd,
 	.utils = &iwl5000_hcmd_utils,
 };
 
 static struct iwl_ops iwl5150_ops = {
+	.ucode = &iwl5000_ucode,
 	.lib = &iwl5150_lib,
 	.hcmd = &iwl5000_hcmd,
 	.utils = &iwl5000_hcmd_utils,
diff --git a/drivers/net/wireless/iwlwifi/iwl-6000.c b/drivers/net/wireless/iwlwifi/iwl-6000.c
index bd438d8acf55..26c5d4a60d17 100644
--- a/drivers/net/wireless/iwlwifi/iwl-6000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-6000.c
@@ -46,8 +46,8 @@
 #include "iwl-5000-hw.h"
 
 /* Highest firmware API version supported */
-#define IWL6000_UCODE_API_MAX 2
-#define IWL6050_UCODE_API_MAX 2
+#define IWL6000_UCODE_API_MAX 3
+#define IWL6050_UCODE_API_MAX 3
 
 /* Lowest firmware API version supported */
 #define IWL6000_UCODE_API_MIN 1
@@ -69,6 +69,7 @@ static struct iwl_hcmd_utils_ops iwl6000_hcmd_utils = {
 };
 
 static struct iwl_ops iwl6000_ops = {
+	.ucode = &iwl5000_ucode,
 	.lib = &iwl5000_lib,
 	.hcmd = &iwl5000_hcmd,
 	.utils = &iwl6000_hcmd_utils,
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index ad5002211ab4..6b874dab4120 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -1284,7 +1284,7 @@ static void iwl_nic_start(struct iwl_priv *priv)
  */
 static int iwl_read_ucode(struct iwl_priv *priv)
 {
-	struct iwl_ucode *ucode;
+	struct iwl_ucode_header *ucode;
 	int ret = -EINVAL, index;
 	const struct firmware *ucode_raw;
 	const char *name_pre = priv->cfg->fw_name_pre;
@@ -1293,7 +1293,8 @@ static int iwl_read_ucode(struct iwl_priv *priv)
 	char buf[25];
 	u8 *src;
 	size_t len;
-	u32 api_ver, inst_size, data_size, init_size, init_data_size, boot_size;
+	u32 api_ver, build;
+	u32 inst_size, data_size, init_size, init_data_size, boot_size;
 
 	/* Ask kernel firmware_class module to get the boot firmware off disk.
 	 * request_firmware() is synchronous, file is in memory on return. */
@@ -1323,23 +1324,26 @@ static int iwl_read_ucode(struct iwl_priv *priv)
 	if (ret < 0)
 		goto error;
 
-	/* Make sure that we got at least our header! */
-	if (ucode_raw->size < sizeof(*ucode)) {
+	/* Make sure that we got at least the v1 header! */
+	if (ucode_raw->size < priv->cfg->ops->ucode->get_header_size(1)) {
 		IWL_ERR(priv, "File size way too small!\n");
 		ret = -EINVAL;
 		goto err_release;
 	}
 
 	/* Data from ucode file:  header followed by uCode images */
-	ucode = (void *)ucode_raw->data;
+	ucode = (struct iwl_ucode_header *)ucode_raw->data;
 
 	priv->ucode_ver = le32_to_cpu(ucode->ver);
 	api_ver = IWL_UCODE_API(priv->ucode_ver);
-	inst_size = le32_to_cpu(ucode->inst_size);
-	data_size = le32_to_cpu(ucode->data_size);
-	init_size = le32_to_cpu(ucode->init_size);
-	init_data_size = le32_to_cpu(ucode->init_data_size);
-	boot_size = le32_to_cpu(ucode->boot_size);
+	build = priv->cfg->ops->ucode->get_build(ucode, api_ver);
+	inst_size = priv->cfg->ops->ucode->get_inst_size(ucode, api_ver);
+	data_size = priv->cfg->ops->ucode->get_data_size(ucode, api_ver);
+	init_size = priv->cfg->ops->ucode->get_init_size(ucode, api_ver);
+	init_data_size =
+		priv->cfg->ops->ucode->get_init_data_size(ucode, api_ver);
+	boot_size = priv->cfg->ops->ucode->get_boot_size(ucode, api_ver);
+	src = priv->cfg->ops->ucode->get_data(ucode, api_ver);
 
 	/* api_ver should match the api version forming part of the
 	 * firmware filename ... but we don't check for that and only rely
@@ -1365,6 +1369,9 @@ static int iwl_read_ucode(struct iwl_priv *priv)
 	       IWL_UCODE_API(priv->ucode_ver),
 	       IWL_UCODE_SERIAL(priv->ucode_ver));
 
+	if (build)
+		IWL_DEBUG_INFO(priv, "Build %u\n", build);
+
 	IWL_DEBUG_INFO(priv, "f/w package hdr ucode version raw = 0x%x\n",
 		       priv->ucode_ver);
 	IWL_DEBUG_INFO(priv, "f/w package hdr runtime inst size = %u\n",
@@ -1379,12 +1386,14 @@ static int iwl_read_ucode(struct iwl_priv *priv)
 		       boot_size);
 
 	/* Verify size of file vs. image size info in file's header */
-	if (ucode_raw->size < sizeof(*ucode) +
+	if (ucode_raw->size !=
+		priv->cfg->ops->ucode->get_header_size(api_ver) +
 		inst_size + data_size + init_size +
 		init_data_size + boot_size) {
 
-		IWL_DEBUG_INFO(priv, "uCode file size %d too small\n",
-			       (int)ucode_raw->size);
+		IWL_DEBUG_INFO(priv,
+			"uCode file size %d does not match expected size\n",
+			(int)ucode_raw->size);
 		ret = -EINVAL;
 		goto err_release;
 	}
@@ -1464,42 +1473,42 @@ static int iwl_read_ucode(struct iwl_priv *priv)
 	/* Copy images into buffers for card's bus-master reads ... */
 
 	/* Runtime instructions (first block of data in file) */
-	src = &ucode->data[0];
-	len = priv->ucode_code.len;
+	len = inst_size;
 	IWL_DEBUG_INFO(priv, "Copying (but not loading) uCode instr len %Zd\n", len);
 	memcpy(priv->ucode_code.v_addr, src, len);
+	src += len;
+
 	IWL_DEBUG_INFO(priv, "uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n",
 		priv->ucode_code.v_addr, (u32)priv->ucode_code.p_addr);
 
 	/* Runtime data (2nd block)
 	 * NOTE:  Copy into backup buffer will be done in iwl_up()  */
-	src = &ucode->data[inst_size];
-	len = priv->ucode_data.len;
+	len = data_size;
 	IWL_DEBUG_INFO(priv, "Copying (but not loading) uCode data len %Zd\n", len);
 	memcpy(priv->ucode_data.v_addr, src, len);
 	memcpy(priv->ucode_data_backup.v_addr, src, len);
+	src += len;
 
 	/* Initialization instructions (3rd block) */
 	if (init_size) {
-		src = &ucode->data[inst_size + data_size];
-		len = priv->ucode_init.len;
+		len = init_size;
 		IWL_DEBUG_INFO(priv, "Copying (but not loading) init instr len %Zd\n",
 				len);
 		memcpy(priv->ucode_init.v_addr, src, len);
+		src += len;
 	}
 
 	/* Initialization data (4th block) */
 	if (init_data_size) {
-		src = &ucode->data[inst_size + data_size + init_size];
-		len = priv->ucode_init_data.len;
+		len = init_data_size;
 		IWL_DEBUG_INFO(priv, "Copying (but not loading) init data len %Zd\n",
 			       len);
 		memcpy(priv->ucode_init_data.v_addr, src, len);
+		src += len;
 	}
 
 	/* Bootstrap instructions (5th block) */
-	src = &ucode->data[inst_size + data_size + init_size + init_data_size];
-	len = priv->ucode_boot.len;
+	len = boot_size;
 	IWL_DEBUG_INFO(priv, "Copying (but not loading) boot instr len %Zd\n", len);
 	memcpy(priv->ucode_boot.v_addr, src, len);
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h
index 640c4644a165..c844fab95abb 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.h
+++ b/drivers/net/wireless/iwlwifi/iwl-core.h
@@ -116,6 +116,17 @@ struct iwl_temp_ops {
 	void (*set_ct_kill)(struct iwl_priv *priv);
 };
 
+struct iwl_ucode_ops {
+	u32 (*get_header_size)(u32);
+	u32 (*get_build)(const struct iwl_ucode_header *, u32);
+	u32 (*get_inst_size)(const struct iwl_ucode_header *, u32);
+	u32 (*get_data_size)(const struct iwl_ucode_header *, u32);
+	u32 (*get_init_size)(const struct iwl_ucode_header *, u32);
+	u32 (*get_init_data_size)(const struct iwl_ucode_header *, u32);
+	u32 (*get_boot_size)(const struct iwl_ucode_header *, u32);
+	u8 * (*get_data)(const struct iwl_ucode_header *, u32);
+};
+
 struct iwl_lib_ops {
 	/* set hw dependent parameters */
 	int (*set_hw_params)(struct iwl_priv *priv);
@@ -171,6 +182,7 @@ struct iwl_lib_ops {
 };
 
 struct iwl_ops {
+	const struct iwl_ucode_ops *ucode;
 	const struct iwl_lib_ops *lib;
 	const struct iwl_hcmd_ops *hcmd;
 	const struct iwl_hcmd_utils_ops *utils;
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index b989d5c08d34..f4afd0c3265f 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -66,6 +66,7 @@ extern struct iwl_cfg iwl1000_bgn_cfg;
 /* shared structures from iwl-5000.c */
 extern struct iwl_mod_params iwl50_mod_params;
 extern struct iwl_ops iwl5000_ops;
+extern struct iwl_ucode_ops iwl5000_ucode;
 extern struct iwl_lib_ops iwl5000_lib;
 extern struct iwl_hcmd_ops iwl5000_hcmd;
 extern struct iwl_hcmd_utils_ops iwl5000_hcmd_utils;
@@ -525,15 +526,29 @@ struct fw_desc {
 };
 
 /* uCode file layout */
-struct iwl_ucode {
-	__le32 ver;		/* major/minor/API/serial */
-	__le32 inst_size;	/* bytes of runtime instructions */
-	__le32 data_size;	/* bytes of runtime data */
-	__le32 init_size;	/* bytes of initialization instructions */
-	__le32 init_data_size;	/* bytes of initialization data */
-	__le32 boot_size;	/* bytes of bootstrap instructions */
-	u8 data[0];		/* data in same order as "size" elements */
+struct iwl_ucode_header {
+	__le32 ver;	/* major/minor/API/serial */
+	union {
+		struct {
+			__le32 inst_size;	/* bytes of runtime code */
+			__le32 data_size;	/* bytes of runtime data */
+			__le32 init_size;	/* bytes of init code */
+			__le32 init_data_size;	/* bytes of init data */
+			__le32 boot_size;	/* bytes of bootstrap code */
+			u8 data[0];		/* in same order as sizes */
+		} v1;
+		struct {
+			__le32 build;		/* build number */
+			__le32 inst_size;	/* bytes of runtime code */
+			__le32 data_size;	/* bytes of runtime data */
+			__le32 init_size;	/* bytes of init code */
+			__le32 init_data_size;	/* bytes of init data */
+			__le32 boot_size;	/* bytes of bootstrap code */
+			u8 data[0];		/* in same order as sizes */
+		} v2;
+	} u;
 };
+#define UCODE_HEADER_SIZE(ver) ((ver) == 1 ? 24 : 28)
 
 struct iwl4965_ibss_seq {
 	u8 mac[ETH_ALEN];
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index c9b3ea927144..bd6a067b4881 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -2041,7 +2041,7 @@ static void iwl3945_nic_start(struct iwl_priv *priv)
  */
 static int iwl3945_read_ucode(struct iwl_priv *priv)
 {
-	struct iwl_ucode *ucode;
+	const struct iwl_ucode_header *ucode;
 	int ret = -EINVAL, index;
 	const struct firmware *ucode_raw;
 	/* firmware file name contains uCode/driver compatibility version */
@@ -2082,22 +2082,24 @@ static int iwl3945_read_ucode(struct iwl_priv *priv)
 		goto error;
 
 	/* Make sure that we got at least our header! */
-	if (ucode_raw->size < sizeof(*ucode)) {
+	if (ucode_raw->size <  priv->cfg->ops->ucode->get_header_size(1)) {
 		IWL_ERR(priv, "File size way too small!\n");
 		ret = -EINVAL;
 		goto err_release;
 	}
 
 	/* Data from ucode file:  header followed by uCode images */
-	ucode = (void *)ucode_raw->data;
+	ucode = (struct iwl_ucode_header *)ucode_raw->data;
 
 	priv->ucode_ver = le32_to_cpu(ucode->ver);
 	api_ver = IWL_UCODE_API(priv->ucode_ver);
-	inst_size = le32_to_cpu(ucode->inst_size);
-	data_size = le32_to_cpu(ucode->data_size);
-	init_size = le32_to_cpu(ucode->init_size);
-	init_data_size = le32_to_cpu(ucode->init_data_size);
-	boot_size = le32_to_cpu(ucode->boot_size);
+	inst_size = priv->cfg->ops->ucode->get_inst_size(ucode, api_ver);
+	data_size = priv->cfg->ops->ucode->get_data_size(ucode, api_ver);
+	init_size = priv->cfg->ops->ucode->get_init_size(ucode, api_ver);
+	init_data_size =
+		priv->cfg->ops->ucode->get_init_data_size(ucode, api_ver);
+	boot_size = priv->cfg->ops->ucode->get_boot_size(ucode, api_ver);
+	src = priv->cfg->ops->ucode->get_data(ucode, api_ver);
 
 	/* api_ver should match the api version forming part of the
 	 * firmware filename ... but we don't check for that and only rely
@@ -2138,12 +2140,13 @@ static int iwl3945_read_ucode(struct iwl_priv *priv)
 
 
 	/* Verify size of file vs. image size info in file's header */
-	if (ucode_raw->size < sizeof(*ucode) +
+	if (ucode_raw->size != priv->cfg->ops->ucode->get_header_size(api_ver) +
 		inst_size + data_size + init_size +
 		init_data_size + boot_size) {
 
-		IWL_DEBUG_INFO(priv, "uCode file size %zd too small\n",
-			       ucode_raw->size);
+		IWL_DEBUG_INFO(priv,
+			"uCode file size %zd does not match expected size\n",
+			ucode_raw->size);
 		ret = -EINVAL;
 		goto err_release;
 	}
@@ -2226,44 +2229,44 @@ static int iwl3945_read_ucode(struct iwl_priv *priv)
 	/* Copy images into buffers for card's bus-master reads ... */
 
 	/* Runtime instructions (first block of data in file) */
-	src = &ucode->data[0];
-	len = priv->ucode_code.len;
+	len = inst_size;
 	IWL_DEBUG_INFO(priv,
 		"Copying (but not loading) uCode instr len %zd\n", len);
 	memcpy(priv->ucode_code.v_addr, src, len);
+	src += len;
+
 	IWL_DEBUG_INFO(priv, "uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n",
 		priv->ucode_code.v_addr, (u32)priv->ucode_code.p_addr);
 
 	/* Runtime data (2nd block)
 	 * NOTE:  Copy into backup buffer will be done in iwl3945_up()  */
-	src = &ucode->data[inst_size];
-	len = priv->ucode_data.len;
+	len = data_size;
 	IWL_DEBUG_INFO(priv,
 		"Copying (but not loading) uCode data len %zd\n", len);
 	memcpy(priv->ucode_data.v_addr, src, len);
 	memcpy(priv->ucode_data_backup.v_addr, src, len);
+	src += len;
 
 	/* Initialization instructions (3rd block) */
 	if (init_size) {
-		src = &ucode->data[inst_size + data_size];
-		len = priv->ucode_init.len;
+		len = init_size;
 		IWL_DEBUG_INFO(priv,
 			"Copying (but not loading) init instr len %zd\n", len);
 		memcpy(priv->ucode_init.v_addr, src, len);
+		src += len;
 	}
 
 	/* Initialization data (4th block) */
 	if (init_data_size) {
-		src = &ucode->data[inst_size + data_size + init_size];
-		len = priv->ucode_init_data.len;
+		len = init_data_size;
 		IWL_DEBUG_INFO(priv,
 			"Copying (but not loading) init data len %zd\n", len);
 		memcpy(priv->ucode_init_data.v_addr, src, len);
+		src += len;
 	}
 
 	/* Bootstrap instructions (5th block) */
-	src = &ucode->data[inst_size + data_size + init_size + init_data_size];
-	len = priv->ucode_boot.len;
+	len = boot_size;
 	IWL_DEBUG_INFO(priv,
 		"Copying (but not loading) boot instr len %zd\n", len);
 	memcpy(priv->ucode_boot.v_addr, src, len);
-- 
cgit v1.2.3


From 5e215169f466e48561e40d1fa142f02e0e44a3d0 Mon Sep 17 00:00:00 2001
From: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Date: Fri, 17 Jul 2009 09:30:17 -0700
Subject: iwlwifi: make led functions generic

Led functions are generic for all the devices except 3945, so remove the
reference to 4965

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-led.c | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-led.c b/drivers/net/wireless/iwlwifi/iwl-led.c
index 5e64252f80f6..36d88a045043 100644
--- a/drivers/net/wireless/iwlwifi/iwl-led.c
+++ b/drivers/net/wireless/iwlwifi/iwl-led.c
@@ -104,7 +104,7 @@ static int iwl_send_led_cmd(struct iwl_priv *priv, struct iwl_led_cmd *led_cmd)
 }
 
 /* Set led pattern command */
-static int iwl4965_led_pattern(struct iwl_priv *priv, int led_id,
+static int iwl_led_pattern(struct iwl_priv *priv, int led_id,
 			       unsigned int idx)
 {
 	struct iwl_led_cmd led_cmd = {
@@ -121,7 +121,7 @@ static int iwl4965_led_pattern(struct iwl_priv *priv, int led_id,
 }
 
 /* Set led register off */
-static int iwl4965_led_on_reg(struct iwl_priv *priv, int led_id)
+static int iwl_led_on_reg(struct iwl_priv *priv, int led_id)
 {
 	IWL_DEBUG_LED(priv, "led on %d\n", led_id);
 	iwl_write32(priv, CSR_LED_REG, CSR_LED_REG_TRUN_ON);
@@ -130,7 +130,7 @@ static int iwl4965_led_on_reg(struct iwl_priv *priv, int led_id)
 
 #if 0
 /* Set led on command */
-static int iwl4965_led_on(struct iwl_priv *priv, int led_id)
+static int iwl_led_on(struct iwl_priv *priv, int led_id)
 {
 	struct iwl_led_cmd led_cmd = {
 		.id = led_id,
@@ -142,7 +142,7 @@ static int iwl4965_led_on(struct iwl_priv *priv, int led_id)
 }
 
 /* Set led off command */
-int iwl4965_led_off(struct iwl_priv *priv, int led_id)
+int iwl_led_off(struct iwl_priv *priv, int led_id)
 {
 	struct iwl_led_cmd led_cmd = {
 		.id = led_id,
@@ -157,7 +157,7 @@ int iwl4965_led_off(struct iwl_priv *priv, int led_id)
 
 
 /* Set led register off */
-static int iwl4965_led_off_reg(struct iwl_priv *priv, int led_id)
+static int iwl_led_off_reg(struct iwl_priv *priv, int led_id)
 {
 	IWL_DEBUG_LED(priv, "LED Reg off\n");
 	iwl_write32(priv, CSR_LED_REG, CSR_LED_REG_TRUN_OFF);
@@ -171,7 +171,7 @@ static int iwl_led_associate(struct iwl_priv *priv, int led_id)
 {
 	IWL_DEBUG_LED(priv, "Associated\n");
 	priv->allow_blinking = 1;
-	return iwl4965_led_on_reg(priv, led_id);
+	return iwl_led_on_reg(priv, led_id);
 }
 static int iwl_led_disassociate(struct iwl_priv *priv, int led_id)
 {
@@ -314,7 +314,7 @@ void iwl_leds_background(struct iwl_priv *priv)
 		priv->last_blink_time = 0;
 		if (priv->last_blink_rate != IWL_SOLID_BLINK_IDX) {
 			priv->last_blink_rate = IWL_SOLID_BLINK_IDX;
-			iwl4965_led_pattern(priv, IWL_LED_LINK,
+			iwl_led_pattern(priv, IWL_LED_LINK,
 					    IWL_SOLID_BLINK_IDX);
 		}
 		return;
@@ -328,7 +328,7 @@ void iwl_leds_background(struct iwl_priv *priv)
 
 	/* call only if blink rate change */
 	if (blink_idx != priv->last_blink_rate)
-		iwl4965_led_pattern(priv, IWL_LED_LINK, blink_idx);
+		iwl_led_pattern(priv, IWL_LED_LINK, blink_idx);
 
 	priv->last_blink_time = jiffies;
 	priv->last_blink_rate = blink_idx;
@@ -351,8 +351,8 @@ int iwl_leds_register(struct iwl_priv *priv)
 		 sizeof(priv->led[IWL_LED_TRG_RADIO].name), "iwl-%s::radio",
 		 wiphy_name(priv->hw->wiphy));
 
-	priv->led[IWL_LED_TRG_RADIO].led_on = iwl4965_led_on_reg;
-	priv->led[IWL_LED_TRG_RADIO].led_off = iwl4965_led_off_reg;
+	priv->led[IWL_LED_TRG_RADIO].led_on = iwl_led_on_reg;
+	priv->led[IWL_LED_TRG_RADIO].led_off = iwl_led_off_reg;
 	priv->led[IWL_LED_TRG_RADIO].led_pattern = NULL;
 
 	ret = iwl_leds_register_led(priv, &priv->led[IWL_LED_TRG_RADIO],
@@ -386,7 +386,7 @@ int iwl_leds_register(struct iwl_priv *priv)
 
 	priv->led[IWL_LED_TRG_RX].led_on = iwl_led_associated;
 	priv->led[IWL_LED_TRG_RX].led_off = iwl_led_associated;
-	priv->led[IWL_LED_TRG_RX].led_pattern = iwl4965_led_pattern;
+	priv->led[IWL_LED_TRG_RX].led_pattern = iwl_led_pattern;
 
 	if (ret)
 		goto exit_fail;
@@ -401,7 +401,7 @@ int iwl_leds_register(struct iwl_priv *priv)
 
 	priv->led[IWL_LED_TRG_TX].led_on = iwl_led_associated;
 	priv->led[IWL_LED_TRG_TX].led_off = iwl_led_associated;
-	priv->led[IWL_LED_TRG_TX].led_pattern = iwl4965_led_pattern;
+	priv->led[IWL_LED_TRG_TX].led_pattern = iwl_led_pattern;
 
 	if (ret)
 		goto exit_fail;
-- 
cgit v1.2.3


From 2d1bb9e58c2b13df13741d1efe1129cf1098405d Mon Sep 17 00:00:00 2001
From: Reinette Chatre <reinette.chatre@intel.com>
Date: Fri, 17 Jul 2009 09:30:18 -0700
Subject: iwlagn: do not send key clear commands when rfkill enabled

Do all key clearing except sending sommands to device when rfkill
enabled. When rfkill enabled the interface is brought down and will
be brought back up correctly after rfkill is enabled again.

Same change is not needed for iwl3945 as it ignores return code when
sending key clearing command to device.

This fixes http://bugzilla.kernel.org/show_bug.cgi?id=13742

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Tested-by: Frans Pop <elendil@planet.nl>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-sta.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-sta.c b/drivers/net/wireless/iwlwifi/iwl-sta.c
index afa1633602a7..7fd806d33a67 100644
--- a/drivers/net/wireless/iwlwifi/iwl-sta.c
+++ b/drivers/net/wireless/iwlwifi/iwl-sta.c
@@ -566,6 +566,8 @@ int iwl_remove_default_wep_key(struct iwl_priv *priv,
 	unsigned long flags;
 
 	spin_lock_irqsave(&priv->sta_lock, flags);
+	IWL_DEBUG_WEP(priv, "Removing default WEP key: idx=%d\n",
+		      keyconf->keyidx);
 
 	if (!test_and_clear_bit(keyconf->keyidx, &priv->ucode_key_table))
 		IWL_ERR(priv, "index %d not used in uCode key table.\n",
@@ -573,6 +575,11 @@ int iwl_remove_default_wep_key(struct iwl_priv *priv,
 
 	priv->default_wep_key--;
 	memset(&priv->wep_keys[keyconf->keyidx], 0, sizeof(priv->wep_keys[0]));
+	if (iwl_is_rfkill(priv)) {
+		IWL_DEBUG_WEP(priv, "Not sending REPLY_WEPKEY command due to RFKILL.\n");
+		spin_unlock_irqrestore(&priv->sta_lock, flags);
+		return 0;
+	}
 	ret = iwl_send_static_wepkey_cmd(priv, 1);
 	IWL_DEBUG_WEP(priv, "Remove default WEP key: idx=%d ret=%d\n",
 		      keyconf->keyidx, ret);
@@ -853,6 +860,11 @@ int iwl_remove_dynamic_key(struct iwl_priv *priv,
 	priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
 	priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
 
+	if (iwl_is_rfkill(priv)) {
+		IWL_DEBUG_WEP(priv, "Not sending REPLY_ADD_STA command because RFKILL enabled. \n");
+		spin_unlock_irqrestore(&priv->sta_lock, flags);
+		return 0;
+	}
 	ret =  iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
 	spin_unlock_irqrestore(&priv->sta_lock, flags);
 	return ret;
-- 
cgit v1.2.3


From a283c0116b0cc5e82327e50ad4d05f6d4d42c603 Mon Sep 17 00:00:00 2001
From: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Date: Fri, 17 Jul 2009 09:30:19 -0700
Subject: iwlwifi: add led debugfs function

Adding debugfs file to show current led blinking rate
/sys/kernel/debug/ieee80211/phy0/iwlagn/data/led

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-debug.h   |  3 +++
 drivers/net/wireless/iwlwifi/iwl-debugfs.c | 36 ++++++++++++++++++++++++++++++
 2 files changed, 39 insertions(+)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-debug.h b/drivers/net/wireless/iwlwifi/iwl-debug.h
index 1555676fc519..e4a4dbd20c98 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debug.h
+++ b/drivers/net/wireless/iwlwifi/iwl-debug.h
@@ -83,6 +83,9 @@ struct iwl_debugfs {
 		struct dentry *file_status;
 		struct dentry *file_interrupt;
 		struct dentry *file_qos;
+#ifdef CONFIG_IWLWIFI_LEDS
+		struct dentry *file_led;
+#endif
 	} dbgfs_data_files;
 	struct dir_rf_files {
 		struct dentry *file_disable_sensitivity;
diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
index 0b9e824b67c2..0ab3463aa07e 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
@@ -591,6 +591,33 @@ static ssize_t iwl_dbgfs_qos_read(struct file *file, char __user *user_buf,
 	return ret;
 }
 
+#ifdef CONFIG_IWLWIFI_LEDS
+static ssize_t iwl_dbgfs_led_read(struct file *file, char __user *user_buf,
+				  size_t count, loff_t *ppos)
+{
+	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+	int pos = 0;
+	char buf[256];
+	const size_t bufsz = sizeof(buf);
+	ssize_t ret;
+
+	pos += scnprintf(buf + pos, bufsz - pos,
+			 "allow blinking: %s\n",
+			 (priv->allow_blinking) ? "True" : "False");
+	if (priv->allow_blinking) {
+		pos += scnprintf(buf + pos, bufsz - pos,
+				 "Led blinking rate: %u\n",
+				 priv->last_blink_rate);
+		pos += scnprintf(buf + pos, bufsz - pos,
+				 "Last blink time: %lu\n",
+				 priv->last_blink_time);
+	}
+
+	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+	return ret;
+}
+#endif
+
 DEBUGFS_READ_WRITE_FILE_OPS(sram);
 DEBUGFS_WRITE_FILE_OPS(log_event);
 DEBUGFS_READ_FILE_OPS(nvm);
@@ -601,6 +628,9 @@ DEBUGFS_READ_FILE_OPS(channels);
 DEBUGFS_READ_FILE_OPS(status);
 DEBUGFS_READ_WRITE_FILE_OPS(interrupt);
 DEBUGFS_READ_FILE_OPS(qos);
+#ifdef CONFIG_IWLWIFI_LEDS
+DEBUGFS_READ_FILE_OPS(led);
+#endif
 
 /*
  * Create the debugfs files and directories
@@ -638,6 +668,9 @@ int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
 	DEBUGFS_ADD_FILE(status, data);
 	DEBUGFS_ADD_FILE(interrupt, data);
 	DEBUGFS_ADD_FILE(qos, data);
+#ifdef CONFIG_IWLWIFI_LEDS
+	DEBUGFS_ADD_FILE(led, data);
+#endif
 	DEBUGFS_ADD_BOOL(disable_sensitivity, rf, &priv->disable_sens_cal);
 	DEBUGFS_ADD_BOOL(disable_chain_noise, rf,
 			 &priv->disable_chain_noise_cal);
@@ -673,6 +706,9 @@ void iwl_dbgfs_unregister(struct iwl_priv *priv)
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_status);
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_interrupt);
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_qos);
+#ifdef CONFIG_IWLWIFI_LEDS
+	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_led);
+#endif
 	DEBUGFS_REMOVE(priv->dbgfs->dir_data);
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_sensitivity);
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_chain_noise);
-- 
cgit v1.2.3


From e5108d075c705ed3336163d9ead2b8fe629f680d Mon Sep 17 00:00:00 2001
From: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Date: Fri, 17 Jul 2009 09:30:20 -0700
Subject: iwlwifi: Led blinking counting both tx and rx

For controlling led blinking, counting both tx and rx data traffic; this
will be able to handle traffic in either direction

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-led.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-led.c b/drivers/net/wireless/iwlwifi/iwl-led.c
index 36d88a045043..8c8115293b3c 100644
--- a/drivers/net/wireless/iwlwifi/iwl-led.c
+++ b/drivers/net/wireless/iwlwifi/iwl-led.c
@@ -54,7 +54,7 @@ static const char *led_type_str[] = {
 
 
 static const struct {
-	u16 tpt;
+	u16 tpt;	/* Mb/s */
 	u8 on_time;
 	u8 off_time;
 } blink_tbl[] =
@@ -264,13 +264,15 @@ static int iwl_leds_register_led(struct iwl_priv *priv, struct iwl_led *led,
 
 
 /*
- * calculate blink rate according to last 2 sec Tx/Rx activities
+ * calculate blink rate according to last second Tx/Rx activities
  */
 static int iwl_get_blink_rate(struct iwl_priv *priv)
 {
 	int i;
-	u64 current_tpt = priv->tx_stats[2].bytes;
-	/* FIXME: + priv->rx_stats[2].bytes; */
+	/* count both tx and rx traffic to be able to
+	 * handle traffic in either direction
+	 */
+	u64 current_tpt = priv->tx_stats[2].bytes + priv->rx_stats[2].bytes;
 	s64 tpt = current_tpt - priv->led_tpt;
 
 	if (tpt < 0) /* wraparound */
-- 
cgit v1.2.3


From b23a0524a38b146f85be44ae0d71abd2a710f4ab Mon Sep 17 00:00:00 2001
From: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Date: Fri, 17 Jul 2009 09:30:21 -0700
Subject: iwlwifi: checking unknown HW type

When deciding NVM type, if the HW type is unknown, report error and exit
with -ENOENT. This check should prevent incorrect behavior by assuming
the wrong NVM type.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-eeprom.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-eeprom.c b/drivers/net/wireless/iwlwifi/iwl-eeprom.c
index 7d7554a2f341..51eed7226669 100644
--- a/drivers/net/wireless/iwlwifi/iwl-eeprom.c
+++ b/drivers/net/wireless/iwlwifi/iwl-eeprom.c
@@ -159,6 +159,9 @@ static int iwlcore_get_nvm_type(struct iwl_priv *priv)
 
 	/* OTP only valid for CP/PP and after */
 	switch (priv->hw_rev & CSR_HW_REV_TYPE_MSK) {
+	case CSR_HW_REV_TYPE_NONE:
+		IWL_ERR(priv, "Unknown hardware type\n");
+		return -ENOENT;
 	case CSR_HW_REV_TYPE_3945:
 	case CSR_HW_REV_TYPE_4965:
 	case CSR_HW_REV_TYPE_5300:
@@ -266,7 +269,8 @@ int iwl_eeprom_init(struct iwl_priv *priv)
 	u32 otpgp;
 
 	priv->nvm_device_type = iwlcore_get_nvm_type(priv);
-
+	if (priv->nvm_device_type == -ENOENT)
+		return -ENOENT;
 	/* allocate eeprom */
 	if (priv->nvm_device_type == NVM_DEVICE_TYPE_OTP)
 		priv->cfg->eeprom_size =
-- 
cgit v1.2.3


From cce53aa347c1e023d967b1cb1aa393c725aedba5 Mon Sep 17 00:00:00 2001
From: Jay Sternberg <jay.e.sternberg@intel.com>
Date: Fri, 17 Jul 2009 09:30:22 -0700
Subject: iwlwifi: update 1000 series API version to match firmware

firmware file now contains build number so API needs to be updated.

Signed-off-by: Jay Sternberg <jay.e.sternberg@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-1000.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-1000.c b/drivers/net/wireless/iwlwifi/iwl-1000.c
index 7da52f1cc1d6..a899be914ebf 100644
--- a/drivers/net/wireless/iwlwifi/iwl-1000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-1000.c
@@ -46,7 +46,7 @@
 #include "iwl-5000-hw.h"
 
 /* Highest firmware API version supported */
-#define IWL1000_UCODE_API_MAX 2
+#define IWL1000_UCODE_API_MAX 3
 
 /* Lowest firmware API version supported */
 #define IWL1000_UCODE_API_MIN 1
-- 
cgit v1.2.3


From 34a66de628b5dcc4a93129610ccd24814935e8cd Mon Sep 17 00:00:00 2001
From: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Date: Fri, 17 Jul 2009 09:30:23 -0700
Subject: iwlwifi: uCode Alive notification with timeout

Wait for REPLY_ALIVE notification from init and runtime uCode.
based on the type of REPLY_ALIVE, different status bit will be set to
wake up the queue:
STATUS_INIT_UCODE_ALIVE for init uCode
STATUS_RT_UCODE_ALIVE for runtime uCode.

If timeout, attempt to download the failing uCode image again. This can
only be done for the init ucode images of all iwlagn devices and the
runtime ucode image of the 5000 series and up. If there is a problem
with the 4965 runtime ucode coming up we restart the interface and thus
trigger a new download of the init ucode also.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-4965.c | 26 ++++++++++++++++-
 drivers/net/wireless/iwlwifi/iwl-agn.c  | 50 +++++++++++++++++++++++++++++++++
 drivers/net/wireless/iwlwifi/iwl-core.c | 39 +++++++++++++++++++------
 drivers/net/wireless/iwlwifi/iwl-core.h |  2 ++
 drivers/net/wireless/iwlwifi/iwl-dev.h  |  2 ++
 5 files changed, 109 insertions(+), 10 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c
index f4eb683aa2d5..272409c80619 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965.c
+++ b/drivers/net/wireless/iwlwifi/iwl-4965.c
@@ -146,7 +146,7 @@ static int iwl4965_load_bsm(struct iwl_priv *priv)
 
 	IWL_DEBUG_INFO(priv, "Begin load bsm\n");
 
-	priv->ucode_type = UCODE_RT;
+	priv->ucode_type = UCODE_INIT;
 
 	/* make sure bootstrap program is no larger than BSM's SRAM size */
 	if (len > IWL49_MAX_BSM_SIZE)
@@ -256,6 +256,8 @@ static int iwl4965_set_ucode_ptrs(struct iwl_priv *priv)
 */
 static void iwl4965_init_alive_start(struct iwl_priv *priv)
 {
+	int ret;
+
 	/* Check alive response for "valid" sign from uCode */
 	if (priv->card_alive_init.is_valid != UCODE_VALID_OK) {
 		/* We had an error bringing up the hardware, so take it
@@ -287,6 +289,28 @@ static void iwl4965_init_alive_start(struct iwl_priv *priv)
 		IWL_DEBUG_INFO(priv, "Couldn't set up uCode pointers.\n");
 		goto restart;
 	}
+	priv->ucode_type = UCODE_RT;
+	if (test_bit(STATUS_RT_UCODE_ALIVE, &priv->status)) {
+		IWL_WARN(priv, "Runtime uCode already alive? "
+			"Waiting for alive anyway\n");
+		clear_bit(STATUS_RT_UCODE_ALIVE, &priv->status);
+	}
+	ret = wait_event_interruptible_timeout(
+			priv->wait_command_queue,
+			test_bit(STATUS_RT_UCODE_ALIVE, &priv->status),
+			UCODE_ALIVE_TIMEOUT);
+	if (!ret) {
+		/* FIXME: if STATUS_RT_UCODE_ALIVE timeout
+		 * go back to restart the download Init uCode again
+		 * this might cause to trap in the restart loop
+		 */
+		priv->ucode_type = UCODE_NONE;
+		if (!test_bit(STATUS_RT_UCODE_ALIVE, &priv->status)) {
+			IWL_ERR(priv, "Runtime timeout after %dms\n",
+				jiffies_to_msecs(UCODE_ALIVE_TIMEOUT));
+			goto restart;
+		}
+	}
 	return;
 
 restart:
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index 6b874dab4120..f61f653a1b72 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -533,12 +533,16 @@ static void iwl_rx_reply_alive(struct iwl_priv *priv,
 
 	if (palive->ver_subtype == INITIALIZE_SUBTYPE) {
 		IWL_DEBUG_INFO(priv, "Initialization Alive received.\n");
+		set_bit(STATUS_INIT_UCODE_ALIVE, &priv->status);
+		wake_up_interruptible(&priv->wait_command_queue);
 		memcpy(&priv->card_alive_init,
 		       &pkt->u.alive_frame,
 		       sizeof(struct iwl_init_alive_resp));
 		pwork = &priv->init_alive_start;
 	} else {
 		IWL_DEBUG_INFO(priv, "Runtime Alive received.\n");
+		set_bit(STATUS_RT_UCODE_ALIVE, &priv->status);
+		wake_up_interruptible(&priv->wait_command_queue);
 		memcpy(&priv->card_alive, &pkt->u.alive_frame,
 		       sizeof(struct iwl_alive_resp));
 		pwork = &priv->alive_start;
@@ -1782,6 +1786,7 @@ static int __iwl_up(struct iwl_priv *priv)
 {
 	int i;
 	int ret;
+	unsigned long status;
 
 	if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
 		IWL_WARN(priv, "Exit pending; will not bring the NIC up\n");
@@ -1859,6 +1864,51 @@ static int __iwl_up(struct iwl_priv *priv)
 		/* start card; "initialize" will load runtime ucode */
 		iwl_nic_start(priv);
 
+		/* Just finish download Init or Runtime uCode image to device
+		 * now we wait here for uCode send REPLY_ALIVE notification
+		 * to indicate uCode is ready.
+		 * 1) For Init uCode image, all iwlagn devices should wait here
+		 * on STATUS_INIT_UCODE_ALIVE status bit; if timeout before
+		 * receive the REPLY_ALIVE notification, go back and try to
+		 * download the Init uCode image again.
+		 * 2) For Runtime uCode image, all iwlagn devices except 4965
+		 * wait here on STATUS_RT_UCODE_ALIVE status bit; if
+		 * timeout before receive the REPLY_ALIVE notification, go back
+		 * and download the Runtime uCode image again.
+		 * 3) For 4965 Runtime uCode, it will not go through this path,
+		 * need to wait for STATUS_RT_UCODE_ALIVE status bit in
+		 * iwl4965_init_alive_start() function; if timeout, need to
+		 * restart and download Init uCode image.
+		 */
+		if (priv->ucode_type == UCODE_INIT)
+			status = STATUS_INIT_UCODE_ALIVE;
+		else
+			status = STATUS_RT_UCODE_ALIVE;
+		if (test_bit(status, &priv->status)) {
+			IWL_WARN(priv,
+				"%s uCode already alive? "
+				"Waiting for alive anyway\n",
+				(status == STATUS_INIT_UCODE_ALIVE)
+				? "INIT" : "Runtime");
+			clear_bit(status, &priv->status);
+		}
+		ret = wait_event_interruptible_timeout(
+				priv->wait_command_queue,
+				test_bit(status, &priv->status),
+				UCODE_ALIVE_TIMEOUT);
+		if (!ret) {
+			if (!test_bit(status, &priv->status)) {
+				priv->ucode_type =
+					(status == STATUS_INIT_UCODE_ALIVE)
+					? UCODE_NONE : UCODE_INIT;
+				IWL_ERR(priv,
+					"%s timeout after %dms\n",
+					(status == STATUS_INIT_UCODE_ALIVE)
+					? "INIT" : "Runtime",
+					jiffies_to_msecs(UCODE_ALIVE_TIMEOUT));
+				continue;
+			}
+		}
 		IWL_DEBUG_INFO(priv, DRV_NAME " is coming up\n");
 
 		return 0;
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index b82480a51782..8655e092fca7 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -1341,10 +1341,17 @@ static void iwl_dump_nic_error_log(struct iwl_priv *priv)
 	u32 desc, time, count, base, data1;
 	u32 blink1, blink2, ilink1, ilink2;
 
-	if (priv->ucode_type == UCODE_INIT)
-		base = le32_to_cpu(priv->card_alive_init.error_event_table_ptr);
-	else
+	switch (priv->ucode_type) {
+	case UCODE_RT:
 		base = le32_to_cpu(priv->card_alive.error_event_table_ptr);
+		break;
+	case UCODE_INIT:
+		base = le32_to_cpu(priv->card_alive_init.error_event_table_ptr);
+		break;
+	default:
+		IWL_ERR(priv, "uCode image not available\n");
+		return;
+	}
 
 	if (!priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) {
 		IWL_ERR(priv, "Not valid error log pointer 0x%08X\n", base);
@@ -1396,10 +1403,17 @@ static void iwl_print_event_log(struct iwl_priv *priv, u32 start_idx,
 
 	if (num_events == 0)
 		return;
-	if (priv->ucode_type == UCODE_INIT)
-		base = le32_to_cpu(priv->card_alive_init.log_event_table_ptr);
-	else
+	switch (priv->ucode_type) {
+	case UCODE_RT:
 		base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
+		break;
+	case UCODE_INIT:
+		base = le32_to_cpu(priv->card_alive_init.log_event_table_ptr);
+		break;
+	default:
+		IWL_ERR(priv, "uCode image not available\n");
+		return;
+	}
 
 	if (mode == 0)
 		event_size = 2 * sizeof(u32);
@@ -1436,10 +1450,17 @@ void iwl_dump_nic_event_log(struct iwl_priv *priv)
 	u32 next_entry; /* index of next entry to be written by uCode */
 	u32 size;       /* # entries that we'll print */
 
-	if (priv->ucode_type == UCODE_INIT)
-		base = le32_to_cpu(priv->card_alive_init.log_event_table_ptr);
-	else
+	switch (priv->ucode_type) {
+	case UCODE_RT:
 		base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
+		break;
+	case UCODE_INIT:
+		base = le32_to_cpu(priv->card_alive_init.log_event_table_ptr);
+		break;
+	default:
+		IWL_ERR(priv, "uCode image not available\n");
+		return;
+	}
 
 	if (!priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) {
 		IWL_ERR(priv, "Invalid event log pointer 0x%08X\n", base);
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h
index c844fab95abb..a697b843863b 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.h
+++ b/drivers/net/wireless/iwlwifi/iwl-core.h
@@ -512,6 +512,8 @@ void iwlcore_free_geos(struct iwl_priv *priv);
 #define STATUS_POWER_PMI	16
 #define STATUS_FW_ERROR		17
 #define STATUS_MODE_PENDING	18
+#define STATUS_INIT_UCODE_ALIVE	19
+#define STATUS_RT_UCODE_ALIVE	20
 
 
 static inline int iwl_is_ready(struct iwl_priv *priv)
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index f4afd0c3265f..926df3ae2416 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -772,6 +772,8 @@ struct iwl_calib_result {
 	size_t buf_len;
 };
 
+#define UCODE_ALIVE_TIMEOUT	(5 * HZ)
+
 enum ucode_type {
 	UCODE_NONE = 0,
 	UCODE_INIT,
-- 
cgit v1.2.3


From a562a9dda7f47e7cac58d80bf1ffe441feca510e Mon Sep 17 00:00:00 2001
From: Reinette Chatre <reinette.chatre@intel.com>
Date: Fri, 17 Jul 2009 09:30:24 -0700
Subject: iwlwifi: make debug level more user friendly

* Deprecate the "debug50" module parameter used to obtain
  5000 series and up debugging. Replace it with "debug" module
  parameter to match with original driver and be consistent
  between them. The "debug50" module parameter can still be used,
  except that the module parameter is not writable in keeping
  with its previous state. We currently just mark it as "deprecated"
  and do not have it in the feature-removal-schedule. Some more
  cleanup of module parameters needs to be done and can then be
  entered together.

* Only make "debug" module parameters visible if the driver
  is compiled with CONFIG_IWLWIFI_DEBUG. This will eliminate
  a lot of confusion where users think they have set debug flags
  but yet cannot see any debug output.

* Make module parameters writable. This eliminates the need for the
  "debug_level" sysfs file, which can now also be deprecated and
  added to feature-removal-schedule. This file is in significant
  use though with many iwlwifi documents and text referring users
  to it. We can thus not take its removal lightly and keep it around.

With iwlcore shared between iwlagn and iwl3945 we really do not need
debug module parameters for each but can instead have one debug
module parameter for the iwlcore module. The same issue is here as
with the sysfs file - a lot of iwlwifi documentation and text (like
bug reports) rely on iwlagn and iwl3945 having this module parameter,
so changing this to a module parameter of iwlcore will have significant
impact and we do not do this for that reason.

One consequence of this patch is that if a user is running a system
with both 3945 and later hardware then the setting of the one module
parameter will affect the value of the other. The likelihood of this
seems low - and even if this setup is present it does not seem like an
issue for both modules to run with the same debug level.

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-3945.c     |  4 ++--
 drivers/net/wireless/iwlwifi/iwl-4965.c     |  2 --
 drivers/net/wireless/iwlwifi/iwl-5000.c     |  2 --
 drivers/net/wireless/iwlwifi/iwl-agn.c      | 31 +++++++++++++++++++----------
 drivers/net/wireless/iwlwifi/iwl-core.c     | 11 ++++++----
 drivers/net/wireless/iwlwifi/iwl-core.h     |  1 -
 drivers/net/wireless/iwlwifi/iwl-debug.h    | 12 +++++------
 drivers/net/wireless/iwlwifi/iwl-dev.h      |  1 -
 drivers/net/wireless/iwlwifi/iwl-rx.c       |  6 +++---
 drivers/net/wireless/iwlwifi/iwl-sta.c      |  2 +-
 drivers/net/wireless/iwlwifi/iwl-tx.c       |  4 ++--
 drivers/net/wireless/iwlwifi/iwl3945-base.c | 25 +++++++++++++----------
 12 files changed, 55 insertions(+), 46 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c
index 14a47c0a1583..8ee403cd9b99 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945.c
@@ -502,14 +502,14 @@ static void _iwl3945_dbg_report_frame(struct iwl_priv *priv,
 		}
 	}
 	if (print_dump)
-		iwl_print_hex_dump(priv, IWL_DL_RX, data, length);
+		iwl_print_hex_dump(IWL_DL_RX, data, length);
 }
 
 static void iwl3945_dbg_report_frame(struct iwl_priv *priv,
 		      struct iwl_rx_packet *pkt,
 		      struct ieee80211_hdr *header, int group100)
 {
-	if (priv->debug_level & IWL_DL_RX)
+	if (iwl_debug_level & IWL_DL_RX)
 		_iwl3945_dbg_report_frame(priv, pkt, header, group100);
 }
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c
index 272409c80619..c30a1b960576 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965.c
+++ b/drivers/net/wireless/iwlwifi/iwl-4965.c
@@ -2376,8 +2376,6 @@ module_param_named(antenna, iwl4965_mod_params.antenna, int, 0444);
 MODULE_PARM_DESC(antenna, "select antenna (1=Main, 2=Aux, default 0 [both])");
 module_param_named(swcrypto, iwl4965_mod_params.sw_crypto, int, 0444);
 MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
-module_param_named(debug, iwl4965_mod_params.debug, uint, 0444);
-MODULE_PARM_DESC(debug, "debug output mask");
 module_param_named(
 	disable_hw_scan, iwl4965_mod_params.disable_hw_scan, int, 0444);
 MODULE_PARM_DESC(disable_hw_scan, "disable hardware scanning (default 0)");
diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c
index 74103cfcaceb..702db07fa382 100644
--- a/drivers/net/wireless/iwlwifi/iwl-5000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-5000.c
@@ -1745,8 +1745,6 @@ MODULE_FIRMWARE(IWL5150_MODULE_FIRMWARE(IWL5150_UCODE_API_MAX));
 module_param_named(swcrypto50, iwl50_mod_params.sw_crypto, bool, 0444);
 MODULE_PARM_DESC(swcrypto50,
 		  "using software crypto engine (default 0 [hardware])\n");
-module_param_named(debug50, iwl50_mod_params.debug, uint, 0444);
-MODULE_PARM_DESC(debug50, "50XX debug output mask");
 module_param_named(queues_num50, iwl50_mod_params.num_of_queues, int, 0444);
 MODULE_PARM_DESC(queues_num50, "number of hw queues in 50xx series");
 module_param_named(11n_disable50, iwl50_mod_params.disable_11n, int, 0444);
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index f61f653a1b72..ff4a546f1e6d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -904,7 +904,7 @@ static void iwl_irq_tasklet_legacy(struct iwl_priv *priv)
 	iwl_write32(priv, CSR_FH_INT_STATUS, inta_fh);
 
 #ifdef CONFIG_IWLWIFI_DEBUG
-	if (priv->debug_level & IWL_DL_ISR) {
+	if (iwl_debug_level & IWL_DL_ISR) {
 		/* just for debug */
 		inta_mask = iwl_read32(priv, CSR_INT_MASK);
 		IWL_DEBUG_ISR(priv, "inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
@@ -939,7 +939,7 @@ static void iwl_irq_tasklet_legacy(struct iwl_priv *priv)
 	}
 
 #ifdef CONFIG_IWLWIFI_DEBUG
-	if (priv->debug_level & (IWL_DL_ISR)) {
+	if (iwl_debug_level & (IWL_DL_ISR)) {
 		/* NIC fires this, but we don't use it, redundant with WAKEUP */
 		if (inta & CSR_INT_BIT_SCD) {
 			IWL_DEBUG_ISR(priv, "Scheduler finished to transmit "
@@ -1053,7 +1053,7 @@ static void iwl_irq_tasklet_legacy(struct iwl_priv *priv)
 		iwl_enable_interrupts(priv);
 
 #ifdef CONFIG_IWLWIFI_DEBUG
-	if (priv->debug_level & (IWL_DL_ISR)) {
+	if (iwl_debug_level & (IWL_DL_ISR)) {
 		inta = iwl_read32(priv, CSR_INT);
 		inta_mask = iwl_read32(priv, CSR_INT_MASK);
 		inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
@@ -1084,7 +1084,7 @@ static void iwl_irq_tasklet(struct iwl_priv *priv)
 	inta = priv->inta;
 
 #ifdef CONFIG_IWLWIFI_DEBUG
-	if (priv->debug_level & IWL_DL_ISR) {
+	if (iwl_debug_level & IWL_DL_ISR) {
 		/* just for debug */
 		inta_mask = iwl_read32(priv, CSR_INT_MASK);
 		IWL_DEBUG_ISR(priv, "inta 0x%08x, enabled 0x%08x\n ",
@@ -1112,7 +1112,7 @@ static void iwl_irq_tasklet(struct iwl_priv *priv)
 	}
 
 #ifdef CONFIG_IWLWIFI_DEBUG
-	if (priv->debug_level & (IWL_DL_ISR)) {
+	if (iwl_debug_level & (IWL_DL_ISR)) {
 		/* NIC fires this, but we don't use it, redundant with WAKEUP */
 		if (inta & CSR_INT_BIT_SCD) {
 			IWL_DEBUG_ISR(priv, "Scheduler finished to transmit "
@@ -2456,14 +2456,16 @@ static int iwl_mac_get_stats(struct ieee80211_hw *hw,
  * used for controlling the debug level.
  *
  * See the level definitions in iwl for details.
+ *
+ * FIXME This file can be deprecated as the module parameter is
+ * writable and users can thus also change the debug level
+ * using the /sys/module/iwl3945/parameters/debug file.
  */
 
 static ssize_t show_debug_level(struct device *d,
 				struct device_attribute *attr, char *buf)
 {
-	struct iwl_priv *priv = dev_get_drvdata(d);
-
-	return sprintf(buf, "0x%08X\n", priv->debug_level);
+	return sprintf(buf, "0x%08X\n", iwl_debug_level);
 }
 static ssize_t store_debug_level(struct device *d,
 				struct device_attribute *attr,
@@ -2477,7 +2479,7 @@ static ssize_t store_debug_level(struct device *d,
 	if (ret)
 		IWL_ERR(priv, "%s is not in hex or decimal form.\n", buf);
 	else
-		priv->debug_level = val;
+		iwl_debug_level = val;
 
 	return strnlen(buf, count);
 }
@@ -2829,7 +2831,7 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	/* Disabling hardware scan means that mac80211 will perform scans
 	 * "the hard way", rather than using device's scan. */
 	if (cfg->mod_params->disable_hw_scan) {
-		if (cfg->mod_params->debug & IWL_DL_INFO)
+		if (iwl_debug_level & IWL_DL_INFO)
 			dev_printk(KERN_DEBUG, &(pdev->dev),
 				   "Disabling hw_scan\n");
 		iwl_hw_ops.hw_scan = NULL;
@@ -2851,7 +2853,6 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	priv->inta_mask = CSR_INI_SET_MASK;
 
 #ifdef CONFIG_IWLWIFI_DEBUG
-	priv->debug_level = priv->cfg->mod_params->debug;
 	atomic_set(&priv->restrict_refcnt, 0);
 #endif
 
@@ -3211,3 +3212,11 @@ static void __exit iwl_exit(void)
 
 module_exit(iwl_exit);
 module_init(iwl_init);
+
+#ifdef CONFIG_IWLWIFI_DEBUG
+module_param_named(debug50, iwl_debug_level, uint, 0444);
+MODULE_PARM_DESC(debug50, "50XX debug output mask (deprecated)");
+module_param_named(debug, iwl_debug_level, uint, 0644);
+MODULE_PARM_DESC(debug, "debug output mask");
+#endif
+
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 8655e092fca7..976004f6c7dc 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -59,6 +59,9 @@ MODULE_LICENSE("GPL");
 				    IWL_RATE_##pp##M_INDEX,    \
 				    IWL_RATE_##np##M_INDEX }
 
+u32 iwl_debug_level;
+EXPORT_SYMBOL(iwl_debug_level);
+
 static irqreturn_t iwl_isr(int irq, void *data);
 
 /*
@@ -1275,7 +1278,7 @@ static void iwl_print_rx_config_cmd(struct iwl_priv *priv)
 	struct iwl_rxon_cmd *rxon = &priv->staging_rxon;
 
 	IWL_DEBUG_RADIO(priv, "RX CONFIG:\n");
-	iwl_print_hex_dump(priv, IWL_DL_RADIO, (u8 *) rxon, sizeof(*rxon));
+	iwl_print_hex_dump(IWL_DL_RADIO, (u8 *) rxon, sizeof(*rxon));
 	IWL_DEBUG_RADIO(priv, "u16 channel: 0x%x\n", le16_to_cpu(rxon->channel));
 	IWL_DEBUG_RADIO(priv, "u32 flags: 0x%08X\n", le32_to_cpu(rxon->flags));
 	IWL_DEBUG_RADIO(priv, "u32 filter_flags: 0x%08x\n",
@@ -1505,7 +1508,7 @@ void iwl_irq_handle_error(struct iwl_priv *priv)
 	clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
 
 #ifdef CONFIG_IWLWIFI_DEBUG
-	if (priv->debug_level & IWL_DL_FW_ERRORS) {
+	if (iwl_debug_level & IWL_DL_FW_ERRORS) {
 		iwl_dump_nic_error_log(priv);
 		iwl_dump_nic_event_log(priv);
 		iwl_print_rx_config_cmd(priv);
@@ -2004,7 +2007,7 @@ static irqreturn_t iwl_isr(int irq, void *data)
 	}
 
 #ifdef CONFIG_IWLWIFI_DEBUG
-	if (priv->debug_level & (IWL_DL_ISR)) {
+	if (iwl_debug_level & (IWL_DL_ISR)) {
 		inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
 		IWL_DEBUG_ISR(priv, "ISR inta 0x%08x, enabled 0x%08x, "
 			      "fh 0x%08x\n", inta, inta_mask, inta_fh);
@@ -2311,7 +2314,7 @@ void iwl_rx_pm_debug_statistics_notif(struct iwl_priv *priv,
 	IWL_DEBUG_RADIO(priv, "Dumping %d bytes of unhandled "
 			"notification for %s:\n",
 			le32_to_cpu(pkt->len), get_cmd_string(pkt->hdr.cmd));
-	iwl_print_hex_dump(priv, IWL_DL_RADIO, pkt->u.raw, le32_to_cpu(pkt->len));
+	iwl_print_hex_dump(IWL_DL_RADIO, pkt->u.raw, le32_to_cpu(pkt->len));
 }
 EXPORT_SYMBOL(iwl_rx_pm_debug_statistics_notif);
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h
index a697b843863b..f82ec9e4da03 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.h
+++ b/drivers/net/wireless/iwlwifi/iwl-core.h
@@ -190,7 +190,6 @@ struct iwl_ops {
 
 struct iwl_mod_params {
 	int sw_crypto;		/* def: 0 = using hardware encryption */
-	u32 debug;		/* def: 0 = minimal debug log messages */
 	int disable_hw_scan;	/* def: 0 = use h/w scan */
 	int num_of_queues;	/* def: HW dependent */
 	int num_of_ampdu_queues;/* def: HW dependent */
diff --git a/drivers/net/wireless/iwlwifi/iwl-debug.h b/drivers/net/wireless/iwlwifi/iwl-debug.h
index e4a4dbd20c98..9faf0c2ff608 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debug.h
+++ b/drivers/net/wireless/iwlwifi/iwl-debug.h
@@ -30,6 +30,7 @@
 #define __iwl_debug_h__
 
 struct iwl_priv;
+extern u32 iwl_debug_level;
 
 #define IWL_ERR(p, f, a...) dev_err(&((p)->pci_dev->dev), f, ## a)
 #define IWL_WARN(p, f, a...) dev_warn(&((p)->pci_dev->dev), f, ## a)
@@ -45,7 +46,7 @@ do {									\
 #ifdef CONFIG_IWLWIFI_DEBUG
 #define IWL_DEBUG(__priv, level, fmt, args...)				\
 do {									\
-	if (__priv->debug_level & (level))				\
+	if (iwl_debug_level & (level))					\
 		dev_printk(KERN_ERR, &(__priv->hw->wiphy->dev),		\
 			 "%c %s " fmt, in_interrupt() ? 'I' : 'U',	\
 			__func__ , ## args);				\
@@ -53,15 +54,15 @@ do {									\
 
 #define IWL_DEBUG_LIMIT(__priv, level, fmt, args...)			\
 do {									\
-	if ((__priv->debug_level & (level)) && net_ratelimit())		\
+	if ((iwl_debug_level & (level)) && net_ratelimit())		\
 		dev_printk(KERN_ERR, &(__priv->hw->wiphy->dev),		\
 			"%c %s " fmt, in_interrupt() ? 'I' : 'U',	\
 			 __func__ , ## args);				\
 } while (0)
 
-#define iwl_print_hex_dump(priv, level, p, len) 			\
+#define iwl_print_hex_dump(level, p, len) 				\
 do {                                            			\
-	if (priv->debug_level & level)          			\
+	if (iwl_debug_level & level)          				\
 		print_hex_dump(KERN_DEBUG, "iwl data: ",		\
 			       DUMP_PREFIX_OFFSET, 16, 1, p, len, 1);	\
 } while (0)
@@ -103,8 +104,7 @@ void iwl_dbgfs_unregister(struct iwl_priv *priv);
 #else
 #define IWL_DEBUG(__priv, level, fmt, args...)
 #define IWL_DEBUG_LIMIT(__priv, level, fmt, args...)
-static inline void iwl_print_hex_dump(struct iwl_priv *priv, int level,
-				      void *p, u32 len)
+static inline void iwl_print_hex_dump(int level, void *p, u32 len)
 {}
 #endif				/* CONFIG_IWLWIFI_DEBUG */
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index 926df3ae2416..0751891f4ab7 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -1111,7 +1111,6 @@ struct iwl_priv {
 
 #ifdef CONFIG_IWLWIFI_DEBUG
 	/* debugging info */
-	u32 debug_level;
 	u32 framecnt_to_us;
 	atomic_t restrict_refcnt;
 #ifdef CONFIG_IWLWIFI_DEBUGFS
diff --git a/drivers/net/wireless/iwlwifi/iwl-rx.c b/drivers/net/wireless/iwlwifi/iwl-rx.c
index fc7edd1d34dc..5d5f2153f445 100644
--- a/drivers/net/wireless/iwlwifi/iwl-rx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-rx.c
@@ -646,7 +646,7 @@ static void iwl_dbg_report_frame(struct iwl_priv *priv,
 	u32 tsf_low;
 	int rssi;
 
-	if (likely(!(priv->debug_level & IWL_DL_RX)))
+	if (likely(!(iwl_debug_level & IWL_DL_RX)))
 		return;
 
 	/* MAC header */
@@ -742,7 +742,7 @@ static void iwl_dbg_report_frame(struct iwl_priv *priv,
 		}
 	}
 	if (print_dump)
-		iwl_print_hex_dump(priv, IWL_DL_RX, header, length);
+		iwl_print_hex_dump(IWL_DL_RX, header, length);
 }
 #endif
 
@@ -1061,7 +1061,7 @@ void iwl_rx_reply_rx(struct iwl_priv *priv,
 
 	/* Set "1" to report good data frames in groups of 100 */
 #ifdef CONFIG_IWLWIFI_DEBUG
-	if (unlikely(priv->debug_level & IWL_DL_RX))
+	if (unlikely(iwl_debug_level & IWL_DL_RX))
 		iwl_dbg_report_frame(priv, rx_start, len, header, 1);
 #endif
 	IWL_DEBUG_STATS_LIMIT(priv, "Rssi %d, noise %d, qual %d, TSF %llu\n",
diff --git a/drivers/net/wireless/iwlwifi/iwl-sta.c b/drivers/net/wireless/iwlwifi/iwl-sta.c
index 7fd806d33a67..cbe4e26d053f 100644
--- a/drivers/net/wireless/iwlwifi/iwl-sta.c
+++ b/drivers/net/wireless/iwlwifi/iwl-sta.c
@@ -1093,7 +1093,7 @@ int iwl_get_sta_id(struct iwl_priv *priv, struct ieee80211_hdr *hdr)
 		IWL_DEBUG_DROP(priv, "Station %pM not in station map. "
 			       "Defaulting to broadcast...\n",
 			       hdr->addr1);
-		iwl_print_hex_dump(priv, IWL_DL_DROP, (u8 *) hdr, sizeof(*hdr));
+		iwl_print_hex_dump(IWL_DL_DROP, (u8 *) hdr, sizeof(*hdr));
 		return priv->hw_params.bcast_sta_id;
 
 	default:
diff --git a/drivers/net/wireless/iwlwifi/iwl-tx.c b/drivers/net/wireless/iwlwifi/iwl-tx.c
index 7073069a61a9..ef7e6bdb0671 100644
--- a/drivers/net/wireless/iwlwifi/iwl-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-tx.c
@@ -869,8 +869,8 @@ int iwl_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
 	IWL_DEBUG_TX(priv, "sequence nr = 0X%x \n",
 		     le16_to_cpu(out_cmd->hdr.sequence));
 	IWL_DEBUG_TX(priv, "tx_flags = 0X%x \n", le32_to_cpu(tx_cmd->tx_flags));
-	iwl_print_hex_dump(priv, IWL_DL_TX, (u8 *)tx_cmd, sizeof(*tx_cmd));
-	iwl_print_hex_dump(priv, IWL_DL_TX, (u8 *)tx_cmd->hdr, hdr_len);
+	iwl_print_hex_dump(IWL_DL_TX, (u8 *)tx_cmd, sizeof(*tx_cmd));
+	iwl_print_hex_dump(IWL_DL_TX, (u8 *)tx_cmd->hdr, hdr_len);
 
 	/* Set up entry for this TFD in Tx byte-count array */
 	if (info->flags & IEEE80211_TX_CTL_AMPDU)
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index bd6a067b4881..221a875b0161 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -612,8 +612,8 @@ static int iwl3945_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
 	IWL_DEBUG_TX(priv, "sequence nr = 0X%x \n",
 		     le16_to_cpu(out_cmd->hdr.sequence));
 	IWL_DEBUG_TX(priv, "tx_flags = 0X%x \n", le32_to_cpu(tx->tx_flags));
-	iwl_print_hex_dump(priv, IWL_DL_TX, tx, sizeof(*tx));
-	iwl_print_hex_dump(priv, IWL_DL_TX, (u8 *)tx->hdr,
+	iwl_print_hex_dump(IWL_DL_TX, tx, sizeof(*tx));
+	iwl_print_hex_dump(IWL_DL_TX, (u8 *)tx->hdr,
 			   ieee80211_hdrlen(fc));
 
 	/*
@@ -1644,7 +1644,7 @@ static void iwl3945_irq_tasklet(struct iwl_priv *priv)
 	iwl_write32(priv, CSR_FH_INT_STATUS, inta_fh);
 
 #ifdef CONFIG_IWLWIFI_DEBUG
-	if (priv->debug_level & IWL_DL_ISR) {
+	if (iwl_debug_level & IWL_DL_ISR) {
 		/* just for debug */
 		inta_mask = iwl_read32(priv, CSR_INT_MASK);
 		IWL_DEBUG_ISR(priv, "inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
@@ -1679,7 +1679,7 @@ static void iwl3945_irq_tasklet(struct iwl_priv *priv)
 	}
 
 #ifdef CONFIG_IWLWIFI_DEBUG
-	if (priv->debug_level & (IWL_DL_ISR)) {
+	if (iwl_debug_level & (IWL_DL_ISR)) {
 		/* NIC fires this, but we don't use it, redundant with WAKEUP */
 		if (inta & CSR_INT_BIT_SCD) {
 			IWL_DEBUG_ISR(priv, "Scheduler finished to transmit "
@@ -1758,7 +1758,7 @@ static void iwl3945_irq_tasklet(struct iwl_priv *priv)
 		iwl_enable_interrupts(priv);
 
 #ifdef CONFIG_IWLWIFI_DEBUG
-	if (priv->debug_level & (IWL_DL_ISR)) {
+	if (iwl_debug_level & (IWL_DL_ISR)) {
 		inta = iwl_read32(priv, CSR_INT);
 		inta_mask = iwl_read32(priv, CSR_INT_MASK);
 		inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
@@ -3308,13 +3308,15 @@ static int iwl3945_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
  * used for controlling the debug level.
  *
  * See the level definitions in iwl for details.
+ *
+ * FIXME This file can be deprecated as the module parameter is
+ * writable and users can thus also change the debug level
+ * using the /sys/module/iwl3945/parameters/debug file.
  */
 static ssize_t show_debug_level(struct device *d,
 				struct device_attribute *attr, char *buf)
 {
-	struct iwl_priv *priv = dev_get_drvdata(d);
-
-	return sprintf(buf, "0x%08X\n", priv->debug_level);
+	return sprintf(buf, "0x%08X\n", iwl_debug_level);
 }
 static ssize_t store_debug_level(struct device *d,
 				struct device_attribute *attr,
@@ -3328,7 +3330,7 @@ static ssize_t store_debug_level(struct device *d,
 	if (ret)
 		IWL_INFO(priv, "%s is not in hex or decimal form.\n", buf);
 	else
-		priv->debug_level = val;
+		iwl_debug_level = val;
 
 	return strnlen(buf, count);
 }
@@ -3966,7 +3968,6 @@ static int iwl3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e
 	priv->inta_mask = CSR_INI_SET_MASK;
 
 #ifdef CONFIG_IWLWIFI_DEBUG
-	priv->debug_level = iwl3945_mod_params.debug;
 	atomic_set(&priv->restrict_refcnt, 0);
 #endif
 
@@ -4262,8 +4263,10 @@ MODULE_PARM_DESC(antenna, "select antenna (1=Main, 2=Aux, default 0 [both])");
 module_param_named(swcrypto, iwl3945_mod_params.sw_crypto, int, 0444);
 MODULE_PARM_DESC(swcrypto,
 		 "using software crypto (default 1 [software])\n");
-module_param_named(debug, iwl3945_mod_params.debug, uint, 0444);
+#ifdef CONFIG_IWLWIFI_DEBUG
+module_param_named(debug, iwl_debug_level, uint, 0644);
 MODULE_PARM_DESC(debug, "debug output mask");
+#endif
 module_param_named(disable_hw_scan, iwl3945_mod_params.disable_hw_scan, int, 0444);
 MODULE_PARM_DESC(disable_hw_scan, "disable hardware scanning (default 0)");
 module_param_named(fw_restart3945, iwl3945_mod_params.restart_fw, int, 0444);
-- 
cgit v1.2.3


From 58dba728b1b727cb3d95a1f76ca4e88a1e628ee1 Mon Sep 17 00:00:00 2001
From: Reinette Chatre <reinette.chatre@intel.com>
Date: Fri, 17 Jul 2009 09:30:25 -0700
Subject: iwlwifi: clarify hardware error message

When a hardware error is detected we need to be clear about that
and not create impression that the microcode is able to deal
with it.

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-agn.c      | 4 ++--
 drivers/net/wireless/iwlwifi/iwl3945-base.c | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index ff4a546f1e6d..b7ac4ee794c0 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -923,7 +923,7 @@ static void iwl_irq_tasklet_legacy(struct iwl_priv *priv)
 
 	/* Now service all interrupt bits discovered above. */
 	if (inta & CSR_INT_BIT_HW_ERR) {
-		IWL_ERR(priv, "Microcode HW error detected.  Restarting.\n");
+		IWL_ERR(priv, "Hardware error detected.  Restarting.\n");
 
 		/* Tell the device to stop sending interrupts */
 		iwl_disable_interrupts(priv);
@@ -1096,7 +1096,7 @@ static void iwl_irq_tasklet(struct iwl_priv *priv)
 
 	/* Now service all interrupt bits discovered above. */
 	if (inta & CSR_INT_BIT_HW_ERR) {
-		IWL_ERR(priv, "Microcode HW error detected.  Restarting.\n");
+		IWL_ERR(priv, "Hardware error detected.  Restarting.\n");
 
 		/* Tell the device to stop sending interrupts */
 		iwl_disable_interrupts(priv);
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index 221a875b0161..8891d6e3a0fa 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -1663,7 +1663,7 @@ static void iwl3945_irq_tasklet(struct iwl_priv *priv)
 
 	/* Now service all interrupt bits discovered above. */
 	if (inta & CSR_INT_BIT_HW_ERR) {
-		IWL_ERR(priv, "Microcode HW error detected.  Restarting.\n");
+		IWL_ERR(priv, "Hardware error detected.  Restarting.\n");
 
 		/* Tell the device to stop sending interrupts */
 		iwl_disable_interrupts(priv);
-- 
cgit v1.2.3


From 4c423a2b0cc3c85137988962e6ba3f01baef0b4e Mon Sep 17 00:00:00 2001
From: Reinette Chatre <reinette.chatre@intel.com>
Date: Fri, 17 Jul 2009 09:30:26 -0700
Subject: iwlwifi: inform user about rfkill state changes

rfkill state changes are mostly available through debug messages.
These are significant enough to always make user aware of so
we turn them into warnings.

Also insert a missing newline in some rfkill related debug message.

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-agn.c      | 4 ++--
 drivers/net/wireless/iwlwifi/iwl-tx.c       | 2 +-
 drivers/net/wireless/iwlwifi/iwl3945-base.c | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index b7ac4ee794c0..44c7f236a7a3 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -964,7 +964,7 @@ static void iwl_irq_tasklet_legacy(struct iwl_priv *priv)
 				CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW))
 			hw_rf_kill = 1;
 
-		IWL_DEBUG_RF_KILL(priv, "RF_KILL bit toggled to %s.\n",
+		IWL_WARN(priv, "RF_KILL bit toggled to %s.\n",
 				hw_rf_kill ? "disable radio" : "enable radio");
 
 		priv->isr_stats.rfkill++;
@@ -1137,7 +1137,7 @@ static void iwl_irq_tasklet(struct iwl_priv *priv)
 				CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW))
 			hw_rf_kill = 1;
 
-		IWL_DEBUG_RF_KILL(priv, "RF_KILL bit toggled to %s.\n",
+		IWL_WARN(priv, "RF_KILL bit toggled to %s.\n",
 				hw_rf_kill ? "disable radio" : "enable radio");
 
 		priv->isr_stats.rfkill++;
diff --git a/drivers/net/wireless/iwlwifi/iwl-tx.c b/drivers/net/wireless/iwlwifi/iwl-tx.c
index ef7e6bdb0671..0912987af603 100644
--- a/drivers/net/wireless/iwlwifi/iwl-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-tx.c
@@ -940,7 +940,7 @@ int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
 	       !(cmd->meta.flags & CMD_SIZE_HUGE));
 
 	if (iwl_is_rfkill(priv)) {
-		IWL_DEBUG_INFO(priv, "Not sending command - RF KILL");
+		IWL_DEBUG_INFO(priv, "Not sending command - RF KILL\n");
 		return -EIO;
 	}
 
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index 8891d6e3a0fa..2cc7e30d7743 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -926,7 +926,7 @@ static void iwl3945_rx_card_state_notif(struct iwl_priv *priv,
 	u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags);
 	unsigned long status = priv->status;
 
-	IWL_DEBUG_RF_KILL(priv, "Card state received: HW:%s SW:%s\n",
+	IWL_WARN(priv, "Card state received: HW:%s SW:%s\n",
 			  (flags & HW_CARD_DISABLED) ? "Kill" : "On",
 			  (flags & SW_CARD_DISABLED) ? "Kill" : "On");
 
-- 
cgit v1.2.3


From 30a12a8fbbd530b016277dd2ab65246b516540a8 Mon Sep 17 00:00:00 2001
From: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Date: Fri, 17 Jul 2009 09:30:27 -0700
Subject: iwlwifi: change iwl_enable/disable_interrupts to "inline"

iwl_enable_interrupts is being called inside the interrupt,
change from function call to inline

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-core.c    | 25 -------------------------
 drivers/net/wireless/iwlwifi/iwl-core.h    |  2 --
 drivers/net/wireless/iwlwifi/iwl-helpers.h | 21 +++++++++++++++++++++
 3 files changed, 21 insertions(+), 27 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 976004f6c7dc..6aea02644809 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -1749,31 +1749,6 @@ void iwl_uninit_drv(struct iwl_priv *priv)
 }
 EXPORT_SYMBOL(iwl_uninit_drv);
 
-
-void iwl_disable_interrupts(struct iwl_priv *priv)
-{
-	clear_bit(STATUS_INT_ENABLED, &priv->status);
-
-	/* disable interrupts from uCode/NIC to host */
-	iwl_write32(priv, CSR_INT_MASK, 0x00000000);
-
-	/* acknowledge/clear/reset any interrupts still pending
-	 * from uCode or flow handler (Rx/Tx DMA) */
-	iwl_write32(priv, CSR_INT, 0xffffffff);
-	iwl_write32(priv, CSR_FH_INT_STATUS, 0xffffffff);
-	IWL_DEBUG_ISR(priv, "Disabled interrupts\n");
-}
-EXPORT_SYMBOL(iwl_disable_interrupts);
-
-void iwl_enable_interrupts(struct iwl_priv *priv)
-{
-	IWL_DEBUG_ISR(priv, "Enabling interrupts\n");
-	set_bit(STATUS_INT_ENABLED, &priv->status);
-	iwl_write32(priv, CSR_INT_MASK, priv->inta_mask);
-}
-EXPORT_SYMBOL(iwl_enable_interrupts);
-
-
 #define ICT_COUNT (PAGE_SIZE/sizeof(u32))
 
 /* Free dram table */
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h
index f82ec9e4da03..614ec7cc5b31 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.h
+++ b/drivers/net/wireless/iwlwifi/iwl-core.h
@@ -458,8 +458,6 @@ int iwl_send_card_state(struct iwl_priv *priv, u32 flags,
 /*****************************************************
  * PCI						     *
  *****************************************************/
-void iwl_disable_interrupts(struct iwl_priv *priv);
-void iwl_enable_interrupts(struct iwl_priv *priv);
 irqreturn_t iwl_isr_legacy(int irq, void *data);
 int iwl_reset_ict(struct iwl_priv *priv);
 void iwl_disable_ict(struct iwl_priv *priv);
diff --git a/drivers/net/wireless/iwlwifi/iwl-helpers.h b/drivers/net/wireless/iwlwifi/iwl-helpers.h
index a1328c3c81ae..bd0b12efb5c7 100644
--- a/drivers/net/wireless/iwlwifi/iwl-helpers.h
+++ b/drivers/net/wireless/iwlwifi/iwl-helpers.h
@@ -145,4 +145,25 @@ static inline void iwl_stop_queue(struct iwl_priv *priv, u8 queue)
 #define ieee80211_stop_queue DO_NOT_USE_ieee80211_stop_queue
 #define ieee80211_wake_queue DO_NOT_USE_ieee80211_wake_queue
 
+static inline void iwl_disable_interrupts(struct iwl_priv *priv)
+{
+	clear_bit(STATUS_INT_ENABLED, &priv->status);
+
+	/* disable interrupts from uCode/NIC to host */
+	iwl_write32(priv, CSR_INT_MASK, 0x00000000);
+
+	/* acknowledge/clear/reset any interrupts still pending
+	 * from uCode or flow handler (Rx/Tx DMA) */
+	iwl_write32(priv, CSR_INT, 0xffffffff);
+	iwl_write32(priv, CSR_FH_INT_STATUS, 0xffffffff);
+	IWL_DEBUG_ISR(priv, "Disabled interrupts\n");
+}
+
+static inline void iwl_enable_interrupts(struct iwl_priv *priv)
+{
+	IWL_DEBUG_ISR(priv, "Enabling interrupts\n");
+	set_bit(STATUS_INT_ENABLED, &priv->status);
+	iwl_write32(priv, CSR_INT_MASK, priv->inta_mask);
+}
+
 #endif				/* __iwl_helpers_h__ */
-- 
cgit v1.2.3


From e3139fe741b25a0f8a27fd2cdf2ad11734c3d4d3 Mon Sep 17 00:00:00 2001
From: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Date: Fri, 24 Jul 2009 11:13:00 -0700
Subject: iwlwifi: revert to active table when rate is not valid

When performing rate scaling, if detected that the new rate
index is invalid, clear the search_better_tbl flag
so it will not be stuck in the loop.

Since the search table is already set up in uCode,
we need to empty out the the search table;
revert back to the "active" rate and throughput info.
Also pass the "active" table setup to uCode to make
sure the rate scale is functioning correctly.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-agn-rs.c | 37 ++++++++++++++++++++++++++-----
 1 file changed, 32 insertions(+), 5 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
index 63280411fd58..40207dac6db5 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
@@ -2002,6 +2002,25 @@ static void rs_stay_in_table(struct iwl_lq_sta *lq_sta)
 	}
 }
 
+/*
+ * setup rate table in uCode
+ * return rate_n_flags as used in the table
+ */
+static u32 rs_update_rate_tbl(struct iwl_priv *priv,
+				struct iwl_lq_sta *lq_sta,
+				struct iwl_scale_tbl_info *tbl,
+				int index, u8 is_green)
+{
+	u32 rate;
+
+	/* Update uCode's rate table. */
+	rate = rate_n_flags_from_tbl(priv, tbl, index, is_green);
+	rs_fill_link_cmd(priv, lq_sta, rate);
+	iwl_send_lq_cmd(priv, &lq_sta->lq, CMD_ASYNC);
+
+	return rate;
+}
+
 /*
  * Do rate scaling and search for new modulation mode.
  */
@@ -2098,6 +2117,16 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
 
 	if (!((1 << index) & rate_scale_index_msk)) {
 		IWL_ERR(priv, "Current Rate is not valid\n");
+		if (lq_sta->search_better_tbl) {
+			/* revert to active table if search table is not valid*/
+			tbl->lq_type = LQ_NONE;
+			lq_sta->search_better_tbl = 0;
+			tbl = &(lq_sta->lq_info[lq_sta->active_tbl]);
+			/* get "active" rate info */
+			index = iwl_hwrate_to_plcp_idx(tbl->current_rate);
+			rate = rs_update_rate_tbl(priv, lq_sta,
+						  tbl, index, is_green);
+		}
 		return;
 	}
 
@@ -2308,11 +2337,9 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
 
 lq_update:
 	/* Replace uCode's rate table for the destination station. */
-	if (update_lq) {
-		rate = rate_n_flags_from_tbl(priv, tbl, index, is_green);
-		rs_fill_link_cmd(priv, lq_sta, rate);
-		iwl_send_lq_cmd(priv, &lq_sta->lq, CMD_ASYNC);
-	}
+	if (update_lq)
+		rate = rs_update_rate_tbl(priv, lq_sta,
+					  tbl, index, is_green);
 
 	/* Should we stay with this modulation mode, or search for a new one? */
 	rs_stay_in_table(lq_sta);
-- 
cgit v1.2.3


From 672639de13c4db92ed6a47e68043a4317e219902 Mon Sep 17 00:00:00 2001
From: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Date: Fri, 24 Jul 2009 11:13:01 -0700
Subject: iwlwifi: critical temperature enter/exit condition

If advance thermal throttling is used the driver need to pass both
"enter" and "exit" temperature to uCode.

Using different critical temperature threshold for legacy and advance
thermal throttling management based on the type of thermal throttling
method is used except 1000.
For 1000, it use advance thermal throttling critical temperature
threshold, but with legacy thermal management implementation until ucode
has the necessary implementations in place.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-1000.c     | 76 ++++++++++++++++++++++++++++-
 drivers/net/wireless/iwlwifi/iwl-4965.c     |  3 +-
 drivers/net/wireless/iwlwifi/iwl-5000.c     | 44 ++++++++---------
 drivers/net/wireless/iwlwifi/iwl-6000.c     | 59 +++++++++++++++++++++-
 drivers/net/wireless/iwlwifi/iwl-commands.h |  7 +++
 drivers/net/wireless/iwlwifi/iwl-core.c     | 22 ++++++++-
 drivers/net/wireless/iwlwifi/iwl-dev.h      | 34 ++++++++++++-
 7 files changed, 217 insertions(+), 28 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-1000.c b/drivers/net/wireless/iwlwifi/iwl-1000.c
index a899be914ebf..80a28184a373 100644
--- a/drivers/net/wireless/iwlwifi/iwl-1000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-1000.c
@@ -55,13 +55,87 @@
 #define _IWL1000_MODULE_FIRMWARE(api) IWL1000_FW_PRE #api ".ucode"
 #define IWL1000_MODULE_FIRMWARE(api) _IWL1000_MODULE_FIRMWARE(api)
 
+
+/*
+ * For 1000, use advance thermal throttling critical temperature threshold,
+ * but legacy thermal management implementation for now.
+ * This is for the reason of 1000 uCode using advance thermal throttling API
+ * but not implement ct_kill_exit based on ct_kill exit temperature
+ * so the thermal throttling will still based on legacy thermal throttling
+ * management.
+ * The code here need to be modified once 1000 uCode has the advanced thermal
+ * throttling algorithm in place
+ */
+static void iwl1000_set_ct_threshold(struct iwl_priv *priv)
+{
+	/* want Celsius */
+	priv->hw_params.ct_kill_threshold = CT_KILL_THRESHOLD_LEGACY;
+	priv->hw_params.ct_kill_exit_threshold = CT_KILL_EXIT_THRESHOLD;
+}
+
+static struct iwl_lib_ops iwl1000_lib = {
+	.set_hw_params = iwl5000_hw_set_hw_params,
+	.txq_update_byte_cnt_tbl = iwl5000_txq_update_byte_cnt_tbl,
+	.txq_inval_byte_cnt_tbl = iwl5000_txq_inval_byte_cnt_tbl,
+	.txq_set_sched = iwl5000_txq_set_sched,
+	.txq_agg_enable = iwl5000_txq_agg_enable,
+	.txq_agg_disable = iwl5000_txq_agg_disable,
+	.txq_attach_buf_to_tfd = iwl_hw_txq_attach_buf_to_tfd,
+	.txq_free_tfd = iwl_hw_txq_free_tfd,
+	.txq_init = iwl_hw_tx_queue_init,
+	.rx_handler_setup = iwl5000_rx_handler_setup,
+	.setup_deferred_work = iwl5000_setup_deferred_work,
+	.is_valid_rtc_data_addr = iwl5000_hw_valid_rtc_data_addr,
+	.load_ucode = iwl5000_load_ucode,
+	.init_alive_start = iwl5000_init_alive_start,
+	.alive_notify = iwl5000_alive_notify,
+	.send_tx_power = iwl5000_send_tx_power,
+	.update_chain_flags = iwl_update_chain_flags,
+	.apm_ops = {
+		.init =	iwl5000_apm_init,
+		.reset = iwl5000_apm_reset,
+		.stop = iwl5000_apm_stop,
+		.config = iwl5000_nic_config,
+		.set_pwr_src = iwl_set_pwr_src,
+	},
+	.eeprom_ops = {
+		.regulatory_bands = {
+			EEPROM_5000_REG_BAND_1_CHANNELS,
+			EEPROM_5000_REG_BAND_2_CHANNELS,
+			EEPROM_5000_REG_BAND_3_CHANNELS,
+			EEPROM_5000_REG_BAND_4_CHANNELS,
+			EEPROM_5000_REG_BAND_5_CHANNELS,
+			EEPROM_5000_REG_BAND_24_FAT_CHANNELS,
+			EEPROM_5000_REG_BAND_52_FAT_CHANNELS
+		},
+		.verify_signature  = iwlcore_eeprom_verify_signature,
+		.acquire_semaphore = iwlcore_eeprom_acquire_semaphore,
+		.release_semaphore = iwlcore_eeprom_release_semaphore,
+		.calib_version	= iwl5000_eeprom_calib_version,
+		.query_addr = iwl5000_eeprom_query_addr,
+	},
+	.post_associate = iwl_post_associate,
+	.isr = iwl_isr_ict,
+	.config_ap = iwl_config_ap,
+	.temp_ops = {
+		.temperature = iwl5000_temperature,
+		.set_ct_kill = iwl1000_set_ct_threshold,
+	 },
+};
+
+static struct iwl_ops iwl1000_ops = {
+	.lib = &iwl1000_lib,
+	.hcmd = &iwl5000_hcmd,
+	.utils = &iwl5000_hcmd_utils,
+};
+
 struct iwl_cfg iwl1000_bgn_cfg = {
 	.name = "1000 Series BGN",
 	.fw_name_pre = IWL1000_FW_PRE,
 	.ucode_api_max = IWL1000_UCODE_API_MAX,
 	.ucode_api_min = IWL1000_UCODE_API_MIN,
 	.sku = IWL_SKU_G|IWL_SKU_N,
-	.ops = &iwl5000_ops,
+	.ops = &iwl1000_ops,
 	.eeprom_size = IWL_5000_EEPROM_IMG_SIZE,
 	.eeprom_ver = EEPROM_5000_EEPROM_VERSION,
 	.eeprom_calib_ver = EEPROM_5000_TX_POWER_VERSION,
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c
index c30a1b960576..23925bd81c62 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965.c
+++ b/drivers/net/wireless/iwlwifi/iwl-4965.c
@@ -776,7 +776,8 @@ static struct iwl_sensitivity_ranges iwl4965_sensitivity = {
 static void iwl4965_set_ct_threshold(struct iwl_priv *priv)
 {
 	/* want Kelvin */
-	priv->hw_params.ct_kill_threshold = CELSIUS_TO_KELVIN(CT_KILL_THRESHOLD);
+	priv->hw_params.ct_kill_threshold =
+		CELSIUS_TO_KELVIN(CT_KILL_THRESHOLD_LEGACY);
 }
 
 /**
diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c
index 702db07fa382..076acb13ba6d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-5000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-5000.c
@@ -91,7 +91,7 @@ static int iwl5000_apm_stop_master(struct iwl_priv *priv)
 }
 
 
-static int iwl5000_apm_init(struct iwl_priv *priv)
+int iwl5000_apm_init(struct iwl_priv *priv)
 {
 	int ret = 0;
 
@@ -137,7 +137,7 @@ static int iwl5000_apm_init(struct iwl_priv *priv)
 }
 
 /* FIXME: this is identical to 4965 */
-static void iwl5000_apm_stop(struct iwl_priv *priv)
+void iwl5000_apm_stop(struct iwl_priv *priv)
 {
 	unsigned long flags;
 
@@ -156,7 +156,7 @@ static void iwl5000_apm_stop(struct iwl_priv *priv)
 }
 
 
-static int iwl5000_apm_reset(struct iwl_priv *priv)
+int iwl5000_apm_reset(struct iwl_priv *priv)
 {
 	int ret = 0;
 
@@ -198,7 +198,7 @@ out:
 }
 
 
-static void iwl5000_nic_config(struct iwl_priv *priv)
+void iwl5000_nic_config(struct iwl_priv *priv)
 {
 	unsigned long flags;
 	u16 radio_cfg;
@@ -290,7 +290,7 @@ static u32 eeprom_indirect_address(const struct iwl_priv *priv, u32 address)
 	return (address & ADDRESS_MSK) + (offset << 1);
 }
 
-static u16 iwl5000_eeprom_calib_version(struct iwl_priv *priv)
+u16 iwl5000_eeprom_calib_version(struct iwl_priv *priv)
 {
 	struct iwl_eeprom_calib_hdr {
 		u8 version;
@@ -436,7 +436,7 @@ static struct iwl_sensitivity_ranges iwl5150_sensitivity = {
 	.nrg_th_ofdm = 95,
 };
 
-static const u8 *iwl5000_eeprom_query_addr(const struct iwl_priv *priv,
+const u8 *iwl5000_eeprom_query_addr(const struct iwl_priv *priv,
 					   size_t offset)
 {
 	u32 address = eeprom_indirect_address(priv, offset);
@@ -447,7 +447,7 @@ static const u8 *iwl5000_eeprom_query_addr(const struct iwl_priv *priv,
 static void iwl5150_set_ct_threshold(struct iwl_priv *priv)
 {
 	const s32 volt2temp_coef = IWL_5150_VOLTAGE_TO_TEMPERATURE_COEFF;
-	s32 threshold = (s32)CELSIUS_TO_KELVIN(CT_KILL_THRESHOLD) -
+	s32 threshold = (s32)CELSIUS_TO_KELVIN(CT_KILL_THRESHOLD_LEGACY) -
 			iwl_temp_calib_to_offset(priv);
 
 	priv->hw_params.ct_kill_threshold = threshold * volt2temp_coef;
@@ -456,7 +456,7 @@ static void iwl5150_set_ct_threshold(struct iwl_priv *priv)
 static void iwl5000_set_ct_threshold(struct iwl_priv *priv)
 {
 	/* want Celsius */
-	priv->hw_params.ct_kill_threshold = CT_KILL_THRESHOLD;
+	priv->hw_params.ct_kill_threshold = CT_KILL_THRESHOLD_LEGACY;
 }
 
 /*
@@ -631,7 +631,7 @@ static int iwl5000_load_given_ucode(struct iwl_priv *priv,
 	return ret;
 }
 
-static int iwl5000_load_ucode(struct iwl_priv *priv)
+int iwl5000_load_ucode(struct iwl_priv *priv)
 {
 	int ret = 0;
 
@@ -658,7 +658,7 @@ static int iwl5000_load_ucode(struct iwl_priv *priv)
 	return ret;
 }
 
-static void iwl5000_init_alive_start(struct iwl_priv *priv)
+void iwl5000_init_alive_start(struct iwl_priv *priv)
 {
 	int ret = 0;
 
@@ -734,7 +734,7 @@ static int iwl5000_send_wimax_coex(struct iwl_priv *priv)
 				sizeof(coex_cmd), &coex_cmd);
 }
 
-static int iwl5000_alive_notify(struct iwl_priv *priv)
+int iwl5000_alive_notify(struct iwl_priv *priv)
 {
 	u32 a;
 	unsigned long flags;
@@ -821,7 +821,7 @@ static int iwl5000_alive_notify(struct iwl_priv *priv)
 	return 0;
 }
 
-static int iwl5000_hw_set_hw_params(struct iwl_priv *priv)
+int iwl5000_hw_set_hw_params(struct iwl_priv *priv)
 {
 	if ((priv->cfg->mod_params->num_of_queues > IWL50_NUM_QUEUES) ||
 	    (priv->cfg->mod_params->num_of_queues < IWL_MIN_NUM_QUEUES)) {
@@ -892,7 +892,7 @@ static int iwl5000_hw_set_hw_params(struct iwl_priv *priv)
 /**
  * iwl5000_txq_update_byte_cnt_tbl - Set up entry in Tx byte-count array
  */
-static void iwl5000_txq_update_byte_cnt_tbl(struct iwl_priv *priv,
+void iwl5000_txq_update_byte_cnt_tbl(struct iwl_priv *priv,
 					    struct iwl_tx_queue *txq,
 					    u16 byte_cnt)
 {
@@ -932,7 +932,7 @@ static void iwl5000_txq_update_byte_cnt_tbl(struct iwl_priv *priv,
 			tfd_offset[TFD_QUEUE_SIZE_MAX + write_ptr] = bc_ent;
 }
 
-static void iwl5000_txq_inval_byte_cnt_tbl(struct iwl_priv *priv,
+void iwl5000_txq_inval_byte_cnt_tbl(struct iwl_priv *priv,
 					   struct iwl_tx_queue *txq)
 {
 	struct iwl5000_scd_bc_tbl *scd_bc_tbl = priv->scd_bc_tbls.addr;
@@ -987,7 +987,7 @@ static void iwl5000_tx_queue_stop_scheduler(struct iwl_priv *priv, u16 txq_id)
 		(1 << IWL50_SCD_QUEUE_STTS_REG_POS_SCD_ACT_EN));
 }
 
-static int iwl5000_txq_agg_enable(struct iwl_priv *priv, int txq_id,
+int iwl5000_txq_agg_enable(struct iwl_priv *priv, int txq_id,
 				  int tx_fifo, int sta_id, int tid, u16 ssn_idx)
 {
 	unsigned long flags;
@@ -1048,7 +1048,7 @@ static int iwl5000_txq_agg_enable(struct iwl_priv *priv, int txq_id,
 	return 0;
 }
 
-static int iwl5000_txq_agg_disable(struct iwl_priv *priv, u16 txq_id,
+int iwl5000_txq_agg_disable(struct iwl_priv *priv, u16 txq_id,
 				   u16 ssn_idx, u8 tx_fifo)
 {
 	if ((IWL50_FIRST_AMPDU_QUEUE > txq_id) ||
@@ -1091,7 +1091,7 @@ u16 iwl5000_build_addsta_hcmd(const struct iwl_addsta_cmd *cmd, u8 *data)
  * Activate/Deactivate Tx DMA/FIFO channels according tx fifos mask
  * must be called under priv->lock and mac access
  */
-static void iwl5000_txq_set_sched(struct iwl_priv *priv, u32 mask)
+void iwl5000_txq_set_sched(struct iwl_priv *priv, u32 mask)
 {
 	iwl_write_prph(priv, IWL50_SCD_TXFACT, mask);
 }
@@ -1312,13 +1312,13 @@ u16 iwl5000_get_hcmd_size(u8 cmd_id, u16 len)
 	return len;
 }
 
-static void iwl5000_setup_deferred_work(struct iwl_priv *priv)
+void iwl5000_setup_deferred_work(struct iwl_priv *priv)
 {
 	/* in 5000 the tx power calibration is done in uCode */
 	priv->disable_tx_power_cal = 1;
 }
 
-static void iwl5000_rx_handler_setup(struct iwl_priv *priv)
+void iwl5000_rx_handler_setup(struct iwl_priv *priv)
 {
 	/* init calibration handlers */
 	priv->rx_handlers[CALIBRATION_RES_NOTIFICATION] =
@@ -1329,7 +1329,7 @@ static void iwl5000_rx_handler_setup(struct iwl_priv *priv)
 }
 
 
-static int iwl5000_hw_valid_rtc_data_addr(u32 addr)
+int iwl5000_hw_valid_rtc_data_addr(u32 addr)
 {
 	return (addr >= IWL50_RTC_DATA_LOWER_BOUND) &&
 		(addr < IWL50_RTC_DATA_UPPER_BOUND);
@@ -1381,7 +1381,7 @@ static int iwl5000_send_rxon_assoc(struct iwl_priv *priv)
 
 	return ret;
 }
-static int  iwl5000_send_tx_power(struct iwl_priv *priv)
+int  iwl5000_send_tx_power(struct iwl_priv *priv)
 {
 	struct iwl5000_tx_power_dbm_cmd tx_power_cmd;
 	u8 tx_ant_cfg_cmd;
@@ -1401,7 +1401,7 @@ static int  iwl5000_send_tx_power(struct iwl_priv *priv)
 				       NULL);
 }
 
-static void iwl5000_temperature(struct iwl_priv *priv)
+void iwl5000_temperature(struct iwl_priv *priv)
 {
 	/* store temperature from statistics (in Celsius) */
 	priv->temperature = le32_to_cpu(priv->statistics.general.temperature);
diff --git a/drivers/net/wireless/iwlwifi/iwl-6000.c b/drivers/net/wireless/iwlwifi/iwl-6000.c
index 26c5d4a60d17..59ff73536f3a 100644
--- a/drivers/net/wireless/iwlwifi/iwl-6000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-6000.c
@@ -61,6 +61,63 @@
 #define _IWL6050_MODULE_FIRMWARE(api) IWL6050_FW_PRE #api ".ucode"
 #define IWL6050_MODULE_FIRMWARE(api) _IWL6050_MODULE_FIRMWARE(api)
 
+static void iwl6000_set_ct_threshold(struct iwl_priv *priv)
+{
+	/* want Celsius */
+	priv->hw_params.ct_kill_threshold = CT_KILL_THRESHOLD;
+	priv->hw_params.ct_kill_exit_threshold = CT_KILL_EXIT_THRESHOLD;
+}
+
+static struct iwl_lib_ops iwl6000_lib = {
+	.set_hw_params = iwl5000_hw_set_hw_params,
+	.txq_update_byte_cnt_tbl = iwl5000_txq_update_byte_cnt_tbl,
+	.txq_inval_byte_cnt_tbl = iwl5000_txq_inval_byte_cnt_tbl,
+	.txq_set_sched = iwl5000_txq_set_sched,
+	.txq_agg_enable = iwl5000_txq_agg_enable,
+	.txq_agg_disable = iwl5000_txq_agg_disable,
+	.txq_attach_buf_to_tfd = iwl_hw_txq_attach_buf_to_tfd,
+	.txq_free_tfd = iwl_hw_txq_free_tfd,
+	.txq_init = iwl_hw_tx_queue_init,
+	.rx_handler_setup = iwl5000_rx_handler_setup,
+	.setup_deferred_work = iwl5000_setup_deferred_work,
+	.is_valid_rtc_data_addr = iwl5000_hw_valid_rtc_data_addr,
+	.load_ucode = iwl5000_load_ucode,
+	.init_alive_start = iwl5000_init_alive_start,
+	.alive_notify = iwl5000_alive_notify,
+	.send_tx_power = iwl5000_send_tx_power,
+	.update_chain_flags = iwl_update_chain_flags,
+	.apm_ops = {
+		.init =	iwl5000_apm_init,
+		.reset = iwl5000_apm_reset,
+		.stop = iwl5000_apm_stop,
+		.config = iwl5000_nic_config,
+		.set_pwr_src = iwl_set_pwr_src,
+	},
+	.eeprom_ops = {
+		.regulatory_bands = {
+			EEPROM_5000_REG_BAND_1_CHANNELS,
+			EEPROM_5000_REG_BAND_2_CHANNELS,
+			EEPROM_5000_REG_BAND_3_CHANNELS,
+			EEPROM_5000_REG_BAND_4_CHANNELS,
+			EEPROM_5000_REG_BAND_5_CHANNELS,
+			EEPROM_5000_REG_BAND_24_FAT_CHANNELS,
+			EEPROM_5000_REG_BAND_52_FAT_CHANNELS
+		},
+		.verify_signature  = iwlcore_eeprom_verify_signature,
+		.acquire_semaphore = iwlcore_eeprom_acquire_semaphore,
+		.release_semaphore = iwlcore_eeprom_release_semaphore,
+		.calib_version	= iwl5000_eeprom_calib_version,
+		.query_addr = iwl5000_eeprom_query_addr,
+	},
+	.post_associate = iwl_post_associate,
+	.isr = iwl_isr_ict,
+	.config_ap = iwl_config_ap,
+	.temp_ops = {
+		.temperature = iwl5000_temperature,
+		.set_ct_kill = iwl6000_set_ct_threshold,
+	 },
+};
+
 static struct iwl_hcmd_utils_ops iwl6000_hcmd_utils = {
 	.get_hcmd_size = iwl5000_get_hcmd_size,
 	.build_addsta_hcmd = iwl5000_build_addsta_hcmd,
@@ -70,7 +127,7 @@ static struct iwl_hcmd_utils_ops iwl6000_hcmd_utils = {
 
 static struct iwl_ops iwl6000_ops = {
 	.ucode = &iwl5000_ucode,
-	.lib = &iwl5000_lib,
+	.lib = &iwl6000_lib,
 	.hcmd = &iwl5000_hcmd,
 	.utils = &iwl6000_hcmd_utils,
 };
diff --git a/drivers/net/wireless/iwlwifi/iwl-commands.h b/drivers/net/wireless/iwlwifi/iwl-commands.h
index ebb2fbce5365..39ede5727fe4 100644
--- a/drivers/net/wireless/iwlwifi/iwl-commands.h
+++ b/drivers/net/wireless/iwlwifi/iwl-commands.h
@@ -2413,6 +2413,13 @@ struct iwl_ct_kill_config {
 	__le32   critical_temperature_R;
 }  __attribute__ ((packed));
 
+/* 1000, and 6x00 */
+struct iwl_ct_kill_throttling_config {
+	__le32   critical_temperature_exit;
+	__le32   reserved;
+	__le32   critical_temperature_enter;
+}  __attribute__ ((packed));
+
 /******************************************************************************
  * (8)
  * Scan Commands, Responses, Notifications:
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 6aea02644809..5ef3c37b5813 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -2224,6 +2224,7 @@ EXPORT_SYMBOL(iwl_verify_ucode);
 void iwl_rf_kill_ct_config(struct iwl_priv *priv)
 {
 	struct iwl_ct_kill_config cmd;
+	struct iwl_ct_kill_throttling_config adv_cmd;
 	unsigned long flags;
 	int ret = 0;
 
@@ -2232,9 +2233,26 @@ void iwl_rf_kill_ct_config(struct iwl_priv *priv)
 		    CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT);
 	spin_unlock_irqrestore(&priv->lock, flags);
 
-	cmd.critical_temperature_R =
-		cpu_to_le32(priv->hw_params.ct_kill_threshold);
+	switch (priv->hw_rev & CSR_HW_REV_TYPE_MSK) {
+	case CSR_HW_REV_TYPE_1000:
+	case CSR_HW_REV_TYPE_6x00:
+	case CSR_HW_REV_TYPE_6x50:
+		adv_cmd.critical_temperature_enter =
+			cpu_to_le32(priv->hw_params.ct_kill_threshold);
+		adv_cmd.critical_temperature_exit =
+			cpu_to_le32(priv->hw_params.ct_kill_exit_threshold);
+
+		ret = iwl_send_cmd_pdu(priv, REPLY_CT_KILL_CONFIG_CMD,
+				       sizeof(adv_cmd), &adv_cmd);
+		break;
+	default:
+		cmd.critical_temperature_R =
+			cpu_to_le32(priv->hw_params.ct_kill_threshold);
 
+		ret = iwl_send_cmd_pdu(priv, REPLY_CT_KILL_CONFIG_CMD,
+				       sizeof(cmd), &cmd);
+		break;
+	}
 	ret = iwl_send_cmd_pdu(priv, REPLY_CT_KILL_CONFIG_CMD,
 			       sizeof(cmd), &cmd);
 	if (ret)
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index 0751891f4ab7..cddf17350c4b 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -63,6 +63,8 @@ extern struct iwl_cfg iwl6050_2agn_cfg;
 extern struct iwl_cfg iwl6050_3agn_cfg;
 extern struct iwl_cfg iwl1000_bgn_cfg;
 
+struct iwl_tx_queue;
+
 /* shared structures from iwl-5000.c */
 extern struct iwl_mod_params iwl50_mod_params;
 extern struct iwl_ops iwl5000_ops;
@@ -79,9 +81,37 @@ extern void iwl5000_rts_tx_cmd_flag(struct ieee80211_tx_info *info,
 				    __le32 *tx_flags);
 extern int iwl5000_calc_rssi(struct iwl_priv *priv,
 			     struct iwl_rx_phy_res *rx_resp);
+extern int iwl5000_apm_init(struct iwl_priv *priv);
+extern void iwl5000_apm_stop(struct iwl_priv *priv);
+extern int iwl5000_apm_reset(struct iwl_priv *priv);
+extern void iwl5000_nic_config(struct iwl_priv *priv);
+extern u16 iwl5000_eeprom_calib_version(struct iwl_priv *priv);
+extern const u8 *iwl5000_eeprom_query_addr(const struct iwl_priv *priv,
+				    size_t offset);
+extern void iwl5000_txq_update_byte_cnt_tbl(struct iwl_priv *priv,
+					    struct iwl_tx_queue *txq,
+					    u16 byte_cnt);
+extern void iwl5000_txq_inval_byte_cnt_tbl(struct iwl_priv *priv,
+				    struct iwl_tx_queue *txq);
+extern int iwl5000_load_ucode(struct iwl_priv *priv);
+extern void iwl5000_init_alive_start(struct iwl_priv *priv);
+extern int iwl5000_alive_notify(struct iwl_priv *priv);
+extern int iwl5000_hw_set_hw_params(struct iwl_priv *priv);
+extern int iwl5000_txq_agg_enable(struct iwl_priv *priv, int txq_id,
+			   int tx_fifo, int sta_id, int tid, u16 ssn_idx);
+extern int iwl5000_txq_agg_disable(struct iwl_priv *priv, u16 txq_id,
+			    u16 ssn_idx, u8 tx_fifo);
+extern void iwl5000_txq_set_sched(struct iwl_priv *priv, u32 mask);
+extern void iwl5000_setup_deferred_work(struct iwl_priv *priv);
+extern void iwl5000_rx_handler_setup(struct iwl_priv *priv);
+extern int iwl5000_hw_valid_rtc_data_addr(u32 addr);
+extern int iwl5000_send_tx_power(struct iwl_priv *priv);
+extern void iwl5000_temperature(struct iwl_priv *priv);
 
 /* CT-KILL constants */
-#define CT_KILL_THRESHOLD	110 /* in Celsius */
+#define CT_KILL_THRESHOLD_LEGACY   110 /* in Celsius */
+#define CT_KILL_THRESHOLD	   114 /* in Celsius */
+#define CT_KILL_EXIT_THRESHOLD     95  /* in Celsius */
 
 /* Default noise level to report when noise measurement is not available.
  *   This may be because we're:
@@ -630,6 +660,8 @@ struct iwl_hw_params {
 	u32 max_data_size;
 	u32 max_bsm_size;
 	u32 ct_kill_threshold; /* value in hw-dependent units */
+	u32 ct_kill_exit_threshold; /* value in hw-dependent units */
+				    /* for 1000, 6000 series and up */
 	u32 calib_init_cfg;
 	const struct iwl_sensitivity_ranges *sens;
 };
-- 
cgit v1.2.3


From 39b73fb15e4704fd4d1e33688135810637f5f3fb Mon Sep 17 00:00:00 2001
From: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Date: Fri, 24 Jul 2009 11:13:02 -0700
Subject: iwlwifi: Thermal Throttling Management - Part 1

Part 1 of Thermal Throttling Management -

Thermal Throttling feature is used to put NIC into low power state when
driver detect the Radio temperature reach pre-defined threshold

Two Thermal Throttling Management Methods; this patch introduce the
Legacy Thermal Management:
   IWL_TI_0: normal temperature, system power state
   IWL_TI_1: high temperature detect, low power state
   IWL_TI_2: higher temperature detected, lower power state
   IWL_TI_CT_KILL: critical temperature detected, lowest power state

Once get into CT_KILL state, uCode go into sleep, driver will stop all
the active queues, then move to IWL_TI_CT_KILL state; also set up 5
seconds timer to toggle CSR flag, uCode wake up upon CSR flag change,
then measure the temperature.
If temperature is above CT_KILL exit threshold, uCode go backto sleep;
if temperature is below CT_KILL exit threshold, uCode send Card State
Notification response with appropriate CT_KILL status flag, and uCode
remain awake, Driver receive Card State Notification Response and update
the card temperature to the CT_KILL exit threshold.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-4965.c  |   1 +
 drivers/net/wireless/iwlwifi/iwl-5000.c  |   1 +
 drivers/net/wireless/iwlwifi/iwl-agn.c   |  19 +--
 drivers/net/wireless/iwlwifi/iwl-core.c  |   1 +
 drivers/net/wireless/iwlwifi/iwl-power.c | 249 +++++++++++++++++++++++++++++++
 drivers/net/wireless/iwlwifi/iwl-power.h |  42 ++++++
 6 files changed, 301 insertions(+), 12 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c
index 23925bd81c62..670214823cb9 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965.c
+++ b/drivers/net/wireless/iwlwifi/iwl-4965.c
@@ -1797,6 +1797,7 @@ static void iwl4965_temperature_calib(struct iwl_priv *priv)
 	}
 
 	priv->temperature = temp;
+	iwl_tt_handler(priv);
 	set_bit(STATUS_TEMPERATURE, &priv->status);
 
 	if (!priv->disable_tx_power_cal &&
diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c
index 076acb13ba6d..ddd64fef3039 100644
--- a/drivers/net/wireless/iwlwifi/iwl-5000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-5000.c
@@ -1405,6 +1405,7 @@ void iwl5000_temperature(struct iwl_priv *priv)
 {
 	/* store temperature from statistics (in Celsius) */
 	priv->temperature = le32_to_cpu(priv->statistics.general.temperature);
+	iwl_tt_handler(priv);
 }
 
 static void iwl5150_temperature(struct iwl_priv *priv)
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index 44c7f236a7a3..23ae9914c84b 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -637,7 +637,6 @@ static void iwl_rx_card_state_notif(struct iwl_priv *priv,
 	struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
 	u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags);
 	unsigned long status = priv->status;
-	unsigned long reg_flags;
 
 	IWL_DEBUG_RF_KILL(priv, "Card state received: HW:%s SW:%s\n",
 			  (flags & HW_CARD_DISABLED) ? "Kill" : "On",
@@ -657,19 +656,12 @@ static void iwl_rx_card_state_notif(struct iwl_priv *priv,
 				    CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
 			iwl_write_direct32(priv, HBUS_TARG_MBX_C,
 					HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED);
-
-		}
-
-		if (flags & RF_CARD_DISABLED) {
-			iwl_write32(priv, CSR_UCODE_DRV_GP1_SET,
-				    CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT);
-			iwl_read32(priv, CSR_UCODE_DRV_GP1);
-			spin_lock_irqsave(&priv->reg_lock, reg_flags);
-			if (!iwl_grab_nic_access(priv))
-				iwl_release_nic_access(priv);
-			spin_unlock_irqrestore(&priv->reg_lock, reg_flags);
 		}
+		if (flags & RF_CARD_DISABLED)
+			iwl_tt_enter_ct_kill(priv);
 	}
+	if (!(flags & RF_CARD_DISABLED))
+		iwl_tt_exit_ct_kill(priv);
 
 	if (flags & HW_CARD_DISABLED)
 		set_bit(STATUS_RF_KILL_HW, &priv->status);
@@ -3015,6 +3007,7 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 		test_bit(STATUS_RF_KILL_HW, &priv->status));
 
 	iwl_power_initialize(priv);
+	iwl_tt_initialize(priv);
 	return 0;
 
  out_remove_sysfs:
@@ -3067,6 +3060,8 @@ static void __devexit iwl_pci_remove(struct pci_dev *pdev)
 		iwl_down(priv);
 	}
 
+	iwl_tt_exit(priv);
+
 	/* make sure we flush any pending irq or
 	 * tasklet for the driver
 	 */
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 5ef3c37b5813..d8aeb24db90a 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -2232,6 +2232,7 @@ void iwl_rf_kill_ct_config(struct iwl_priv *priv)
 	iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR,
 		    CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT);
 	spin_unlock_irqrestore(&priv->lock, flags);
+	priv->power_data.ct_kill_toggle = false;
 
 	switch (priv->hw_rev & CSR_HW_REV_TYPE_MSK) {
 	case CSR_HW_REV_TYPE_1000:
diff --git a/drivers/net/wireless/iwlwifi/iwl-power.c b/drivers/net/wireless/iwlwifi/iwl-power.c
index f2ea3f05f6e1..d7fdb5825450 100644
--- a/drivers/net/wireless/iwlwifi/iwl-power.c
+++ b/drivers/net/wireless/iwlwifi/iwl-power.c
@@ -36,6 +36,7 @@
 #include "iwl-eeprom.h"
 #include "iwl-dev.h"
 #include "iwl-core.h"
+#include "iwl-io.h"
 #include "iwl-commands.h"
 #include "iwl-debug.h"
 #include "iwl-power.h"
@@ -211,6 +212,7 @@ int iwl_power_update_mode(struct iwl_priv *priv, bool force)
 {
 	struct iwl_power_mgr *setting = &(priv->power_data);
 	int ret = 0;
+	struct iwl_tt_mgmt *tt = &priv->power_data.tt;
 	u16 uninitialized_var(final_mode);
 	bool update_chains;
 
@@ -223,6 +225,10 @@ int iwl_power_update_mode(struct iwl_priv *priv, bool force)
 	if (setting->power_disabled)
 		final_mode = IWL_POWER_MODE_CAM;
 
+	if (tt->state >= IWL_TI_1) {
+		/* TT power setting overwrite user & system power setting */
+		final_mode = tt->tt_power_mode;
+	}
 	if (iwl_is_ready_rf(priv) &&
 	    ((setting->power_mode != final_mode) || force)) {
 		struct iwl_powertable_cmd cmd;
@@ -267,6 +273,249 @@ int iwl_power_set_user_mode(struct iwl_priv *priv, u16 mode)
 }
 EXPORT_SYMBOL(iwl_power_set_user_mode);
 
+#define CT_KILL_EXIT_DURATION (5)	/* 5 seconds duration */
+
+/*
+ * toggle the bit to wake up uCode and check the temperature
+ * if the temperature is below CT, uCode will stay awake and send card
+ * state notification with CT_KILL bit clear to inform Thermal Throttling
+ * Management to change state. Otherwise, uCode will go back to sleep
+ * without doing anything, driver should continue the 5 seconds timer
+ * to wake up uCode for temperature check until temperature drop below CT
+ */
+static void iwl_tt_check_exit_ct_kill(unsigned long data)
+{
+	struct iwl_priv *priv = (struct iwl_priv *)data;
+	struct iwl_tt_mgmt *tt = &priv->power_data.tt;
+	unsigned long flags;
+
+	if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+		return;
+
+	if (tt->state == IWL_TI_CT_KILL) {
+		if (priv->power_data.ct_kill_toggle) {
+			iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR,
+				    CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT);
+			priv->power_data.ct_kill_toggle = false;
+		} else {
+			iwl_write32(priv, CSR_UCODE_DRV_GP1_SET,
+				    CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT);
+			priv->power_data.ct_kill_toggle = true;
+		}
+		iwl_read32(priv, CSR_UCODE_DRV_GP1);
+		spin_lock_irqsave(&priv->reg_lock, flags);
+		if (!iwl_grab_nic_access(priv))
+			iwl_release_nic_access(priv);
+		spin_unlock_irqrestore(&priv->reg_lock, flags);
+
+		/* Reschedule the ct_kill timer to occur in
+		 * CT_KILL_EXIT_DURATION seconds to ensure we get a
+		 * thermal update */
+		mod_timer(&priv->power_data.ct_kill_exit_tm, jiffies +
+			  CT_KILL_EXIT_DURATION * HZ);
+	}
+}
+
+static void iwl_perform_ct_kill_task(struct iwl_priv *priv,
+			   bool stop)
+{
+	if (stop) {
+		IWL_DEBUG_POWER(priv, "Stop all queues\n");
+		if (priv->mac80211_registered)
+			ieee80211_stop_queues(priv->hw);
+		IWL_DEBUG_POWER(priv,
+				"Schedule 5 seconds CT_KILL Timer\n");
+		mod_timer(&priv->power_data.ct_kill_exit_tm, jiffies +
+			  CT_KILL_EXIT_DURATION * HZ);
+	} else {
+		IWL_DEBUG_POWER(priv, "Wake all queues\n");
+		if (priv->mac80211_registered)
+			ieee80211_wake_queues(priv->hw);
+	}
+}
+
+#define IWL_MINIMAL_POWER_THRESHOLD		(CT_KILL_THRESHOLD_LEGACY)
+#define IWL_REDUCED_PERFORMANCE_THRESHOLD_2	(100)
+#define IWL_REDUCED_PERFORMANCE_THRESHOLD_1	(90)
+
+/*
+ * Legacy thermal throttling
+ * 1) Avoid NIC destruction due to high temperatures
+ *	Chip will identify dangerously high temperatures that can
+ *	harm the device and will power down
+ * 2) Avoid the NIC power down due to high temperature
+ *	Throttle early enough to lower the power consumption before
+ *	drastic steps are needed
+ */
+static void iwl_legacy_tt_handler(struct iwl_priv *priv, s32 temp)
+{
+	struct iwl_tt_mgmt *tt = &priv->power_data.tt;
+	enum iwl_tt_state new_state;
+	struct iwl_power_mgr *setting = &priv->power_data;
+
+#ifdef CONFIG_IWLWIFI_DEBUG
+	if ((tt->tt_previous_temp) &&
+	    (temp > tt->tt_previous_temp) &&
+	    ((temp - tt->tt_previous_temp) >
+	    IWL_TT_INCREASE_MARGIN)) {
+		IWL_DEBUG_POWER(priv,
+			"Temperature increase %d degree Celsius\n",
+			(temp - tt->tt_previous_temp));
+	}
+#endif
+	/* in Celsius */
+	if (temp >= IWL_MINIMAL_POWER_THRESHOLD)
+		new_state = IWL_TI_CT_KILL;
+	else if (temp >= IWL_REDUCED_PERFORMANCE_THRESHOLD_2)
+		new_state = IWL_TI_2;
+	else if (temp >= IWL_REDUCED_PERFORMANCE_THRESHOLD_1)
+		new_state = IWL_TI_1;
+	else
+		new_state = IWL_TI_0;
+
+#ifdef CONFIG_IWLWIFI_DEBUG
+	tt->tt_previous_temp = temp;
+#endif
+	if (tt->state != new_state) {
+		if (tt->state == IWL_TI_0) {
+			tt->sys_power_mode = setting->power_mode;
+			IWL_DEBUG_POWER(priv, "current power mode: %u\n",
+				setting->power_mode);
+		}
+		switch (new_state) {
+		case IWL_TI_0:
+			/* when system ready to go back to IWL_TI_0 state
+			 * using system power mode instead of TT power mode
+			 * revert back to the orginal power mode which was saved
+			 * before enter Thermal Throttling state
+			 * update priv->power_data.user_power_setting to the
+			 * required power mode to make sure
+			 * iwl_power_update_mode() will update power correctly.
+			 */
+			priv->power_data.user_power_setting =
+				tt->sys_power_mode;
+			tt->tt_power_mode = tt->sys_power_mode;
+			break;
+		case IWL_TI_1:
+			tt->tt_power_mode = IWL_POWER_INDEX_3;
+			break;
+		case IWL_TI_2:
+			tt->tt_power_mode = IWL_POWER_INDEX_4;
+			break;
+		default:
+			tt->tt_power_mode = IWL_POWER_INDEX_5;
+			break;
+		}
+		if (iwl_power_update_mode(priv, true)) {
+			/* TT state not updated
+			 * try again during next temperature read
+			 */
+			IWL_ERR(priv, "Cannot update power mode, "
+					"TT state not updated\n");
+		} else {
+			if (new_state == IWL_TI_CT_KILL)
+				iwl_perform_ct_kill_task(priv, true);
+			else if (tt->state == IWL_TI_CT_KILL &&
+				 new_state != IWL_TI_CT_KILL)
+				iwl_perform_ct_kill_task(priv, false);
+			tt->state = new_state;
+			IWL_DEBUG_POWER(priv, "Temperature state changed %u\n",
+					tt->state);
+			IWL_DEBUG_POWER(priv, "Power Index change to %u\n",
+					tt->tt_power_mode);
+		}
+	}
+}
+
+/* Card State Notification indicated reach critical temperature
+ * if PSP not enable, no Thermal Throttling function will be performed
+ * just set the GP1 bit to acknowledge the event
+ * otherwise, go into IWL_TI_CT_KILL state
+ * since Card State Notification will not provide any temperature reading
+ * so just pass the CT_KILL temperature to iwl_legacy_tt_handler()
+ */
+void iwl_tt_enter_ct_kill(struct iwl_priv *priv)
+{
+	struct iwl_tt_mgmt *tt = &priv->power_data.tt;
+
+	if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+		return;
+
+	if (tt->state != IWL_TI_CT_KILL) {
+		IWL_ERR(priv, "Device reached critical temperature "
+			      "- ucode going to sleep!\n");
+		iwl_legacy_tt_handler(priv, IWL_MINIMAL_POWER_THRESHOLD);
+	}
+}
+EXPORT_SYMBOL(iwl_tt_enter_ct_kill);
+
+/* Card State Notification indicated out of critical temperature
+ * since Card State Notification will not provide any temperature reading
+ * so pass the IWL_REDUCED_PERFORMANCE_THRESHOLD_2 temperature
+ * to iwl_legacy_tt_handler() to get out of IWL_CT_KILL state
+ */
+void iwl_tt_exit_ct_kill(struct iwl_priv *priv)
+{
+	struct iwl_tt_mgmt *tt = &priv->power_data.tt;
+
+	if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+		return;
+
+	/* stop ct_kill_exit_tm timer */
+	del_timer_sync(&priv->power_data.ct_kill_exit_tm);
+
+	if (tt->state == IWL_TI_CT_KILL) {
+		IWL_ERR(priv,
+			"Device temperature below critical"
+			"- ucode awake!\n");
+		iwl_legacy_tt_handler(priv,
+			IWL_REDUCED_PERFORMANCE_THRESHOLD_2);
+	}
+}
+EXPORT_SYMBOL(iwl_tt_exit_ct_kill);
+
+void iwl_tt_handler(struct iwl_priv *priv)
+{
+	s32 temp = priv->temperature; /* degrees CELSIUS except 4965 */
+
+	if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+		return;
+
+	if ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_4965)
+		temp = KELVIN_TO_CELSIUS(priv->temperature);
+
+	iwl_legacy_tt_handler(priv, temp);
+}
+EXPORT_SYMBOL(iwl_tt_handler);
+
+/* Thermal throttling initialization
+ */
+void iwl_tt_initialize(struct iwl_priv *priv)
+{
+	struct iwl_tt_mgmt *tt = &priv->power_data.tt;
+	struct iwl_power_mgr *setting = &priv->power_data;
+
+	IWL_DEBUG_POWER(priv, "Initialize Thermal Throttling \n");
+
+	memset(tt, 0, sizeof(struct iwl_tt_mgmt));
+
+	tt->state = IWL_TI_0;
+	tt->sys_power_mode = setting->power_mode;
+	tt->tt_power_mode = tt->sys_power_mode;
+	init_timer(&priv->power_data.ct_kill_exit_tm);
+	priv->power_data.ct_kill_exit_tm.data = (unsigned long)priv;
+	priv->power_data.ct_kill_exit_tm.function = iwl_tt_check_exit_ct_kill;
+}
+EXPORT_SYMBOL(iwl_tt_initialize);
+
+/* cleanup thermal throttling management related memory and timer */
+void iwl_tt_exit(struct iwl_priv *priv)
+{
+	/* stop ct_kill_exit_tm timer if activated */
+	del_timer_sync(&priv->power_data.ct_kill_exit_tm);
+}
+EXPORT_SYMBOL(iwl_tt_exit);
+
 /* initialize to default */
 void iwl_power_initialize(struct iwl_priv *priv)
 {
diff --git a/drivers/net/wireless/iwlwifi/iwl-power.h b/drivers/net/wireless/iwlwifi/iwl-power.h
index 37ba3bb7a25a..7bb10d41ae5f 100644
--- a/drivers/net/wireless/iwlwifi/iwl-power.h
+++ b/drivers/net/wireless/iwlwifi/iwl-power.h
@@ -33,6 +33,38 @@
 
 struct iwl_priv;
 
+#define IWL_TT_INCREASE_MARGIN	5
+
+/* Thermal Throttling State Machine states */
+enum  iwl_tt_state {
+	IWL_TI_0,	/* normal temperature, system power state */
+	IWL_TI_1,	/* high temperature detect, low power state */
+	IWL_TI_2,	/* higher temperature detected, lower power state */
+	IWL_TI_CT_KILL, /* critical temperature detected, lowest power state */
+	IWL_TI_STATE_MAX
+};
+
+/**
+ * struct iwl_tt_mgnt - Thermal Throttling Management structure
+ * @state:          current Thermal Throttling state
+ * @tt_power_mode:  Thermal Throttling power mode index
+ *		    being used to set power level when
+ * 		    when thermal throttling state != IWL_TI_0
+ *		    the tt_power_mode should set to different
+ *		    power mode based on the current tt state
+ * @sys_power_mode: previous system power mode
+ *                  before transition into TT state
+ * @tt_previous_temperature: last measured temperature
+ */
+struct iwl_tt_mgmt {
+	enum iwl_tt_state state;
+	u8 tt_power_mode;
+	u8 sys_power_mode;
+#ifdef CONFIG_IWLWIFI_DEBUG
+	s32 tt_previous_temp;
+#endif
+};
+
 enum {
 	IWL_POWER_MODE_CAM, /* Continuously Aware Mode, always on */
 	IWL_POWER_INDEX_1,
@@ -59,10 +91,20 @@ struct iwl_power_mgr {
 	u8 power_mode;
 	u8 user_power_setting; /* set by user through sysfs */
 	u8 power_disabled; /* set by mac80211's CONF_PS */
+	struct iwl_tt_mgmt tt; /* Thermal Throttling Management */
+	bool ct_kill_toggle;   /* use to toggle the CSR bit when
+				* checking uCode temperature
+				*/
+	struct timer_list ct_kill_exit_tm;
 };
 
 int iwl_power_update_mode(struct iwl_priv *priv, bool force);
 int iwl_power_set_user_mode(struct iwl_priv *priv, u16 mode);
+void iwl_tt_enter_ct_kill(struct iwl_priv *priv);
+void iwl_tt_exit_ct_kill(struct iwl_priv *priv);
+void iwl_tt_handler(struct iwl_priv *priv);
+void iwl_tt_initialize(struct iwl_priv *priv);
+void iwl_tt_exit(struct iwl_priv *priv);
 void iwl_power_initialize(struct iwl_priv *priv);
 
 #endif  /* __iwl_power_setting_h__ */
-- 
cgit v1.2.3


From 46f9381aa3fb62f6a141bfd41dcbeda1ec5fa26e Mon Sep 17 00:00:00 2001
From: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Date: Fri, 24 Jul 2009 11:13:03 -0700
Subject: iwlwifi: Thermal Throttling Management - part 2

Part 2 of Thermal Throttling Management -

Thermal Throttling feature is used to put NIC into low power state when
driver detect the Radio temperature reach pre-defined threshold

Two Thermal Throttling Management Methods; this patch introduce the
Advance Thermal Throttling:
TI-0: system power index, no tx/rx restriction, HT enabled
TI-1: power index 5, 1 spatial stream Tx, multiple spatial stream Rx, HT
enabled
TI-2: power index 5: 1 spatial stream Tx, 1 spatial stream Rx, HT
disabled
TI-CT-KILL: power index 5, no Tx, no Rx, HT disabled

For advance Thermal Throttling, CT_KILL_ENTER threshold and CT_KILL_EXIT
threshold are different; uCode will not stay awake until reach
CT_KILL_EXIT threshold.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-agn-rs.c |  48 ++++-
 drivers/net/wireless/iwlwifi/iwl-power.c  | 285 +++++++++++++++++++++++++++++-
 drivers/net/wireless/iwlwifi/iwl-power.h  |  51 ++++++
 3 files changed, 371 insertions(+), 13 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
index 40207dac6db5..52a4810274e9 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
@@ -177,7 +177,7 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
 				   struct sk_buff *skb,
 				   struct ieee80211_sta *sta,
 				   struct iwl_lq_sta *lq_sta);
-static void rs_fill_link_cmd(const struct iwl_priv *priv,
+static void rs_fill_link_cmd(struct iwl_priv *priv,
 			     struct iwl_lq_sta *lq_sta, u32 rate_n_flags);
 
 
@@ -1398,6 +1398,12 @@ static int rs_move_legacy_other(struct iwl_priv *priv,
 	int ret = 0;
 	u8 update_search_tbl_counter = 0;
 
+	if (!iwl_ht_enabled(priv))
+		/* stay in Legacy */
+		tbl->action = IWL_LEGACY_SWITCH_ANTENNA1;
+	else if (iwl_tx_ant_restriction(priv) == IWL_TX_SINGLE &&
+		   tbl->action > IWL_LEGACY_SWITCH_SISO)
+		tbl->action = IWL_LEGACY_SWITCH_SISO;
 	for (; ;) {
 		lq_sta->action_counter++;
 		switch (tbl->action) {
@@ -1529,6 +1535,11 @@ static int rs_move_siso_to_other(struct iwl_priv *priv,
 	u8 update_search_tbl_counter = 0;
 	int ret;
 
+	if (iwl_tx_ant_restriction(priv) == IWL_TX_SINGLE &&
+	    tbl->action > IWL_SISO_SWITCH_ANTENNA2) {
+		/* stay in SISO */
+		tbl->action = IWL_SISO_SWITCH_ANTENNA1;
+	}
 	for (;;) {
 		lq_sta->action_counter++;
 		switch (tbl->action) {
@@ -1663,6 +1674,12 @@ static int rs_move_mimo2_to_other(struct iwl_priv *priv,
 	u8 update_search_tbl_counter = 0;
 	int ret;
 
+	if ((iwl_tx_ant_restriction(priv) == IWL_TX_SINGLE) &&
+	    (tbl->action < IWL_MIMO2_SWITCH_SISO_A ||
+	     tbl->action > IWL_MIMO2_SWITCH_SISO_C)) {
+		/* switch in SISO */
+		tbl->action = IWL_MIMO2_SWITCH_SISO_A;
+	}
 	for (;;) {
 		lq_sta->action_counter++;
 		switch (tbl->action) {
@@ -1799,6 +1816,12 @@ static int rs_move_mimo3_to_other(struct iwl_priv *priv,
 	int ret;
 	u8 update_search_tbl_counter = 0;
 
+	if ((iwl_tx_ant_restriction(priv) == IWL_TX_SINGLE) &&
+	    (tbl->action < IWL_MIMO3_SWITCH_SISO_A ||
+	     tbl->action > IWL_MIMO3_SWITCH_SISO_C)) {
+		/* switch in SISO */
+		tbl->action = IWL_MIMO3_SWITCH_SISO_A;
+	}
 	for (;;) {
 		lq_sta->action_counter++;
 		switch (tbl->action) {
@@ -2178,8 +2201,8 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
 			tbl->expected_tpt[index] + 64) / 128));
 
 	/* If we are searching for better modulation mode, check success. */
-	if (lq_sta->search_better_tbl) {
-
+	if (lq_sta->search_better_tbl &&
+	    (iwl_tx_ant_restriction(priv) == IWL_TX_MULTI)) {
 		/* If good success, continue using the "search" mode;
 		 * no need to send new link quality command, since we're
 		 * continuing to use the setup that we've been trying. */
@@ -2307,7 +2330,11 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
 		    ((sr > IWL_RATE_HIGH_TH) ||
 		     (current_tpt > (100 * tbl->expected_tpt[low]))))
 		scale_action = 0;
-
+	if (!iwl_ht_enabled(priv) && !is_legacy(tbl->lq_type))
+		scale_action = -1;
+	if (iwl_tx_ant_restriction(priv) != IWL_TX_MULTI &&
+		(is_mimo2(tbl->lq_type) || is_mimo3(tbl->lq_type)))
+		scale_action = -1;
 	switch (scale_action) {
 	case -1:
 		/* Decrease starting rate, update uCode's rate table */
@@ -2341,9 +2368,11 @@ lq_update:
 		rate = rs_update_rate_tbl(priv, lq_sta,
 					  tbl, index, is_green);
 
-	/* Should we stay with this modulation mode, or search for a new one? */
-	rs_stay_in_table(lq_sta);
-
+	if (iwl_tx_ant_restriction(priv) == IWL_TX_MULTI) {
+		/* Should we stay with this modulation mode,
+		 * or search for a new one? */
+		rs_stay_in_table(lq_sta);
+	}
 	/*
 	 * Search for new modulation mode if we're:
 	 * 1)  Not changing rates right now
@@ -2400,7 +2429,8 @@ lq_update:
 		 * have been tried and compared, stay in this best modulation
 		 * mode for a while before next round of mode comparisons. */
 		if (lq_sta->enable_counter &&
-		    (lq_sta->action_counter >= tbl1->max_search)) {
+		    (lq_sta->action_counter >= tbl1->max_search) &&
+		    iwl_ht_enabled(priv)) {
 			if ((lq_sta->last_tpt > IWL_AGG_TPT_THREHOLD) &&
 			    (lq_sta->tx_agg_tid_en & (1 << tid)) &&
 			    (tid != MAX_TID_COUNT)) {
@@ -2686,7 +2716,7 @@ static void rs_rate_init(void *priv_r, struct ieee80211_supported_band *sband,
 	rs_initialize_lq(priv, conf, sta, lq_sta);
 }
 
-static void rs_fill_link_cmd(const struct iwl_priv *priv,
+static void rs_fill_link_cmd(struct iwl_priv *priv,
 			     struct iwl_lq_sta *lq_sta, u32 new_rate)
 {
 	struct iwl_scale_tbl_info tbl_type;
diff --git a/drivers/net/wireless/iwlwifi/iwl-power.c b/drivers/net/wireless/iwlwifi/iwl-power.c
index d7fdb5825450..00937b3ee8ec 100644
--- a/drivers/net/wireless/iwlwifi/iwl-power.c
+++ b/drivers/net/wireless/iwlwifi/iwl-power.c
@@ -98,6 +98,45 @@ static const struct iwl_power_vec_entry range_2[IWL_POWER_NUM] = {
 	{{SLP, SLP_TOUT(25), SLP_TOUT(25), SLP_VEC(4, 7, 10, 10, 0xFF)}, 0}
 };
 
+/* default Thermal Throttling transaction table
+ * Current state   |         Throttling Down               |  Throttling Up
+ *=============================================================================
+ *                 Condition Nxt State  Condition Nxt State Condition Nxt State
+ *-----------------------------------------------------------------------------
+ *     IWL_TI_0     T >= 115   CT_KILL  115>T>=105   TI_1      N/A      N/A
+ *     IWL_TI_1     T >= 115   CT_KILL  115>T>=110   TI_2     T<=95     TI_0
+ *     IWL_TI_2     T >= 115   CT_KILL                        T<=100    TI_1
+ *    IWL_CT_KILL      N/A       N/A       N/A        N/A     T<=95     TI_0
+ *=============================================================================
+ */
+static const struct iwl_tt_trans tt_range_0[IWL_TI_STATE_MAX - 1] = {
+	{IWL_TI_0, IWL_ABSOLUTE_ZERO, 104},
+	{IWL_TI_1, 105, CT_KILL_THRESHOLD},
+	{IWL_TI_CT_KILL, CT_KILL_THRESHOLD + 1, IWL_ABSOLUTE_MAX}
+};
+static const struct iwl_tt_trans tt_range_1[IWL_TI_STATE_MAX - 1] = {
+	{IWL_TI_0, IWL_ABSOLUTE_ZERO, 95},
+	{IWL_TI_2, 110, CT_KILL_THRESHOLD},
+	{IWL_TI_CT_KILL, CT_KILL_THRESHOLD + 1, IWL_ABSOLUTE_MAX}
+};
+static const struct iwl_tt_trans tt_range_2[IWL_TI_STATE_MAX - 1] = {
+	{IWL_TI_1, IWL_ABSOLUTE_ZERO, 100},
+	{IWL_TI_CT_KILL, CT_KILL_THRESHOLD + 1, IWL_ABSOLUTE_MAX},
+	{IWL_TI_CT_KILL, CT_KILL_THRESHOLD + 1, IWL_ABSOLUTE_MAX}
+};
+static const struct iwl_tt_trans tt_range_3[IWL_TI_STATE_MAX - 1] = {
+	{IWL_TI_0, IWL_ABSOLUTE_ZERO, CT_KILL_EXIT_THRESHOLD},
+	{IWL_TI_CT_KILL, CT_KILL_EXIT_THRESHOLD + 1, IWL_ABSOLUTE_MAX},
+	{IWL_TI_CT_KILL, CT_KILL_EXIT_THRESHOLD + 1, IWL_ABSOLUTE_MAX}
+};
+
+/* Advance Thermal Throttling default restriction table */
+static const struct iwl_tt_restriction restriction_range[IWL_TI_STATE_MAX] = {
+	{IWL_TX_MULTI, true, IWL_RX_MULTI},
+	{IWL_TX_SINGLE, true, IWL_RX_MULTI},
+	{IWL_TX_SINGLE, false, IWL_RX_SINGLE},
+	{IWL_TX_NONE, false, IWL_RX_NONE}
+};
 
 /* set card power command */
 static int iwl_set_power(struct iwl_priv *priv, void *cmd)
@@ -273,6 +312,42 @@ int iwl_power_set_user_mode(struct iwl_priv *priv, u16 mode)
 }
 EXPORT_SYMBOL(iwl_power_set_user_mode);
 
+bool iwl_ht_enabled(struct iwl_priv *priv)
+{
+	struct iwl_tt_mgmt *tt = &priv->power_data.tt;
+	struct iwl_tt_restriction *restriction;
+
+	if (!priv->power_data.adv_tt)
+		return true;
+	restriction = tt->restriction + tt->state;
+	return restriction->is_ht;
+}
+EXPORT_SYMBOL(iwl_ht_enabled);
+
+u8 iwl_tx_ant_restriction(struct iwl_priv *priv)
+{
+	struct iwl_tt_mgmt *tt = &priv->power_data.tt;
+	struct iwl_tt_restriction *restriction;
+
+	if (!priv->power_data.adv_tt)
+		return IWL_TX_MULTI;
+	restriction = tt->restriction + tt->state;
+	return restriction->tx_stream;
+}
+EXPORT_SYMBOL(iwl_tx_ant_restriction);
+
+u8 iwl_rx_ant_restriction(struct iwl_priv *priv)
+{
+	struct iwl_tt_mgmt *tt = &priv->power_data.tt;
+	struct iwl_tt_restriction *restriction;
+
+	if (!priv->power_data.adv_tt)
+		return IWL_RX_MULTI;
+	restriction = tt->restriction + tt->state;
+	return restriction->rx_stream;
+}
+EXPORT_SYMBOL(iwl_rx_ant_restriction);
+
 #define CT_KILL_EXIT_DURATION (5)	/* 5 seconds duration */
 
 /*
@@ -427,12 +502,147 @@ static void iwl_legacy_tt_handler(struct iwl_priv *priv, s32 temp)
 	}
 }
 
+/*
+ * Advance thermal throttling
+ * 1) Avoid NIC destruction due to high temperatures
+ *	Chip will identify dangerously high temperatures that can
+ *	harm the device and will power down
+ * 2) Avoid the NIC power down due to high temperature
+ *	Throttle early enough to lower the power consumption before
+ *	drastic steps are needed
+ *	Actions include relaxing the power down sleep thresholds and
+ *	decreasing the number of TX streams
+ * 3) Avoid throughput performance impact as much as possible
+ *
+ *=============================================================================
+ *                 Condition Nxt State  Condition Nxt State Condition Nxt State
+ *-----------------------------------------------------------------------------
+ *     IWL_TI_0     T >= 115   CT_KILL  115>T>=105   TI_1      N/A      N/A
+ *     IWL_TI_1     T >= 115   CT_KILL  115>T>=110   TI_2     T<=95     TI_0
+ *     IWL_TI_2     T >= 115   CT_KILL                        T<=100    TI_1
+ *    IWL_CT_KILL      N/A       N/A       N/A        N/A     T<=95     TI_0
+ *=============================================================================
+ */
+static void iwl_advance_tt_handler(struct iwl_priv *priv, s32 temp)
+{
+	struct iwl_tt_mgmt *tt = &priv->power_data.tt;
+	int i;
+	bool changed = false;
+	enum iwl_tt_state old_state;
+	struct iwl_tt_trans *transaction;
+
+	old_state = tt->state;
+	for (i = 0; i < IWL_TI_STATE_MAX - 1; i++) {
+		/* based on the current TT state,
+		 * find the curresponding transaction table
+		 * each table has (IWL_TI_STATE_MAX - 1) entries
+		 * tt->transaction + ((old_state * (IWL_TI_STATE_MAX - 1))
+		 * will advance to the correct table.
+		 * then based on the current temperature
+		 * find the next state need to transaction to
+		 * go through all the possible (IWL_TI_STATE_MAX - 1) entries
+		 * in the current table to see if transaction is needed
+		 */
+		transaction = tt->transaction +
+			((old_state * (IWL_TI_STATE_MAX - 1)) + i);
+		if (temp >= transaction->tt_low &&
+		    temp <= transaction->tt_high) {
+#ifdef CONFIG_IWLWIFI_DEBUG
+			if ((tt->tt_previous_temp) &&
+			    (temp > tt->tt_previous_temp) &&
+			    ((temp - tt->tt_previous_temp) >
+			    IWL_TT_INCREASE_MARGIN)) {
+				IWL_DEBUG_POWER(priv,
+					"Temperature increase %d "
+					"degree Celsius\n",
+					(temp - tt->tt_previous_temp));
+			}
+			tt->tt_previous_temp = temp;
+#endif
+			if (old_state !=
+			    transaction->next_state) {
+				changed = true;
+				tt->state =
+					transaction->next_state;
+			}
+			break;
+		}
+	}
+	if (changed) {
+		struct iwl_rxon_cmd *rxon = &priv->staging_rxon;
+		struct iwl_power_mgr *setting = &priv->power_data;
+
+		if (tt->state >= IWL_TI_1) {
+			/* if switching from IWL_TI_0 to other TT state
+			 * save previous power setting in tt->sys_power_mode */
+			if (old_state == IWL_TI_0)
+				tt->sys_power_mode = setting->power_mode;
+			/* force PI = IWL_POWER_INDEX_5 in the case of TI > 0 */
+			tt->tt_power_mode = IWL_POWER_INDEX_5;
+			if (!iwl_ht_enabled(priv))
+				/* disable HT */
+				rxon->flags &= ~(RXON_FLG_CHANNEL_MODE_MSK |
+					RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK |
+					RXON_FLG_FAT_PROT_MSK |
+					RXON_FLG_HT_PROT_MSK);
+			else {
+				/* check HT capability and set
+				 * according to the system HT capability
+				 * in case get disabled before */
+				iwl_set_rxon_ht(priv, &priv->current_ht_config);
+			}
+
+		} else {
+			/* restore system power setting */
+			/* the previous power mode was saved in
+			 * tt->sys_power_mode when system move into
+			 * Thermal Throttling state
+			 * set power_data.user_power_setting to the previous
+			 * system power mode to make sure power will get
+			 * updated correctly
+			 */
+			priv->power_data.user_power_setting =
+				tt->sys_power_mode;
+			tt->tt_power_mode = tt->sys_power_mode;
+			/* check HT capability and set
+			 * according to the system HT capability
+			 * in case get disabled before */
+			iwl_set_rxon_ht(priv, &priv->current_ht_config);
+		}
+		if (iwl_power_update_mode(priv, true)) {
+			/* TT state not updated
+			 * try again during next temperature read
+			 */
+			IWL_ERR(priv, "Cannot update power mode, "
+					"TT state not updated\n");
+			tt->state = old_state;
+		} else {
+			IWL_DEBUG_POWER(priv,
+					"Thermal Throttling to new state: %u\n",
+					tt->state);
+			if (old_state != IWL_TI_CT_KILL &&
+			    tt->state == IWL_TI_CT_KILL) {
+				IWL_DEBUG_POWER(priv, "Enter IWL_TI_CT_KILL\n");
+				iwl_perform_ct_kill_task(priv, true);
+
+			} else if (old_state == IWL_TI_CT_KILL &&
+				  tt->state != IWL_TI_CT_KILL) {
+				IWL_DEBUG_POWER(priv, "Exit IWL_TI_CT_KILL\n");
+				iwl_perform_ct_kill_task(priv, false);
+			}
+		}
+	}
+}
+
 /* Card State Notification indicated reach critical temperature
  * if PSP not enable, no Thermal Throttling function will be performed
  * just set the GP1 bit to acknowledge the event
  * otherwise, go into IWL_TI_CT_KILL state
  * since Card State Notification will not provide any temperature reading
+ * for Legacy mode
  * so just pass the CT_KILL temperature to iwl_legacy_tt_handler()
+ * for advance mode
+ * pass CT_KILL_THRESHOLD+1 to make sure move into IWL_TI_CT_KILL state
  */
 void iwl_tt_enter_ct_kill(struct iwl_priv *priv)
 {
@@ -444,7 +654,12 @@ void iwl_tt_enter_ct_kill(struct iwl_priv *priv)
 	if (tt->state != IWL_TI_CT_KILL) {
 		IWL_ERR(priv, "Device reached critical temperature "
 			      "- ucode going to sleep!\n");
-		iwl_legacy_tt_handler(priv, IWL_MINIMAL_POWER_THRESHOLD);
+		if (!priv->power_data.adv_tt)
+			iwl_legacy_tt_handler(priv,
+					      IWL_MINIMAL_POWER_THRESHOLD);
+		else
+			iwl_advance_tt_handler(priv,
+					       CT_KILL_THRESHOLD + 1);
 	}
 }
 EXPORT_SYMBOL(iwl_tt_enter_ct_kill);
@@ -468,8 +683,11 @@ void iwl_tt_exit_ct_kill(struct iwl_priv *priv)
 		IWL_ERR(priv,
 			"Device temperature below critical"
 			"- ucode awake!\n");
-		iwl_legacy_tt_handler(priv,
-			IWL_REDUCED_PERFORMANCE_THRESHOLD_2);
+		if (!priv->power_data.adv_tt)
+			iwl_legacy_tt_handler(priv,
+					IWL_REDUCED_PERFORMANCE_THRESHOLD_2);
+		else
+			iwl_advance_tt_handler(priv, CT_KILL_EXIT_THRESHOLD);
 	}
 }
 EXPORT_SYMBOL(iwl_tt_exit_ct_kill);
@@ -484,16 +702,24 @@ void iwl_tt_handler(struct iwl_priv *priv)
 	if ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_4965)
 		temp = KELVIN_TO_CELSIUS(priv->temperature);
 
-	iwl_legacy_tt_handler(priv, temp);
+	if (!priv->power_data.adv_tt)
+		iwl_legacy_tt_handler(priv, temp);
+	else
+		iwl_advance_tt_handler(priv, temp);
 }
 EXPORT_SYMBOL(iwl_tt_handler);
 
 /* Thermal throttling initialization
+ * For advance thermal throttling:
+ *     Initialize Thermal Index and temperature threshold table
+ *     Initialize thermal throttling restriction table
  */
 void iwl_tt_initialize(struct iwl_priv *priv)
 {
 	struct iwl_tt_mgmt *tt = &priv->power_data.tt;
 	struct iwl_power_mgr *setting = &priv->power_data;
+	int size = sizeof(struct iwl_tt_trans) * (IWL_TI_STATE_MAX - 1);
+	struct iwl_tt_trans *transaction;
 
 	IWL_DEBUG_POWER(priv, "Initialize Thermal Throttling \n");
 
@@ -505,14 +731,65 @@ void iwl_tt_initialize(struct iwl_priv *priv)
 	init_timer(&priv->power_data.ct_kill_exit_tm);
 	priv->power_data.ct_kill_exit_tm.data = (unsigned long)priv;
 	priv->power_data.ct_kill_exit_tm.function = iwl_tt_check_exit_ct_kill;
+	switch (priv->hw_rev & CSR_HW_REV_TYPE_MSK) {
+	case CSR_HW_REV_TYPE_6x00:
+	case CSR_HW_REV_TYPE_6x50:
+		IWL_DEBUG_POWER(priv, "Advanced Thermal Throttling\n");
+		tt->restriction = kzalloc(sizeof(struct iwl_tt_restriction) *
+					 IWL_TI_STATE_MAX, GFP_KERNEL);
+		tt->transaction = kzalloc(sizeof(struct iwl_tt_trans) *
+			IWL_TI_STATE_MAX * (IWL_TI_STATE_MAX - 1),
+			GFP_KERNEL);
+		if (!tt->restriction || !tt->transaction) {
+			IWL_ERR(priv, "Fallback to Legacy Throttling\n");
+			priv->power_data.adv_tt = false;
+			kfree(tt->restriction);
+			tt->restriction = NULL;
+			kfree(tt->transaction);
+			tt->transaction = NULL;
+		} else {
+			transaction = tt->transaction +
+				(IWL_TI_0 * (IWL_TI_STATE_MAX - 1));
+			memcpy(transaction, &tt_range_0[0], size);
+			transaction = tt->transaction +
+				(IWL_TI_1 * (IWL_TI_STATE_MAX - 1));
+			memcpy(transaction, &tt_range_1[0], size);
+			transaction = tt->transaction +
+				(IWL_TI_2 * (IWL_TI_STATE_MAX - 1));
+			memcpy(transaction, &tt_range_2[0], size);
+			transaction = tt->transaction +
+				(IWL_TI_CT_KILL * (IWL_TI_STATE_MAX - 1));
+			memcpy(transaction, &tt_range_3[0], size);
+			size = sizeof(struct iwl_tt_restriction) *
+				IWL_TI_STATE_MAX;
+			memcpy(tt->restriction,
+				&restriction_range[0], size);
+			priv->power_data.adv_tt = true;
+		}
+		break;
+	default:
+		IWL_DEBUG_POWER(priv, "Legacy Thermal Throttling\n");
+		priv->power_data.adv_tt = false;
+		break;
+	}
 }
 EXPORT_SYMBOL(iwl_tt_initialize);
 
 /* cleanup thermal throttling management related memory and timer */
 void iwl_tt_exit(struct iwl_priv *priv)
 {
+	struct iwl_tt_mgmt *tt = &priv->power_data.tt;
+
 	/* stop ct_kill_exit_tm timer if activated */
 	del_timer_sync(&priv->power_data.ct_kill_exit_tm);
+
+	if (priv->power_data.adv_tt) {
+		/* free advance thermal throttling memory */
+		kfree(tt->restriction);
+		tt->restriction = NULL;
+		kfree(tt->transaction);
+		tt->transaction = NULL;
+	}
 }
 EXPORT_SYMBOL(iwl_tt_exit);
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-power.h b/drivers/net/wireless/iwlwifi/iwl-power.h
index 7bb10d41ae5f..3d49b7a45b74 100644
--- a/drivers/net/wireless/iwlwifi/iwl-power.h
+++ b/drivers/net/wireless/iwlwifi/iwl-power.h
@@ -33,8 +33,18 @@
 
 struct iwl_priv;
 
+#define IWL_ABSOLUTE_ZERO		0
+#define IWL_ABSOLUTE_MAX		0xFFFFFFFF
 #define IWL_TT_INCREASE_MARGIN	5
 
+/* Tx/Rx restrictions */
+#define IWL_TX_MULTI		0x02
+#define IWL_TX_SINGLE		0x01
+#define IWL_TX_NONE		0x00
+#define IWL_RX_MULTI		0x02
+#define IWL_RX_SINGLE		0x01
+#define IWL_RX_NONE		0x00
+
 /* Thermal Throttling State Machine states */
 enum  iwl_tt_state {
 	IWL_TI_0,	/* normal temperature, system power state */
@@ -44,6 +54,35 @@ enum  iwl_tt_state {
 	IWL_TI_STATE_MAX
 };
 
+/**
+ * struct iwl_tt_restriction - Thermal Throttling restriction table used
+ *		by advance thermal throttling management
+ *		based on the current thermal throttling state, determine
+ *		number of tx/rx streams; and the status of HT operation
+ * @tx_stream: number of tx stream allowed
+ * @is_ht: ht enable/disable
+ * @rx_stream: number of rx stream allowed
+ */
+struct iwl_tt_restriction {
+	u8 tx_stream;
+	bool is_ht;
+	u8 rx_stream;
+};
+
+/**
+ * struct iwl_tt_trans - Thermal Throttling transaction table; used by
+ * 		advance thermal throttling algorithm to determine next
+ *		thermal state to go based on the current temperature
+ * @next_state:  next thermal throttling mode
+ * @tt_low: low temperature threshold to change state
+ * @tt_high: high temperature threshold to change state
+ */
+struct iwl_tt_trans {
+	enum iwl_tt_state next_state;
+	u32 tt_low;
+	u32 tt_high;
+};
+
 /**
  * struct iwl_tt_mgnt - Thermal Throttling Management structure
  * @state:          current Thermal Throttling state
@@ -55,6 +94,11 @@ enum  iwl_tt_state {
  * @sys_power_mode: previous system power mode
  *                  before transition into TT state
  * @tt_previous_temperature: last measured temperature
+ * @iwl_tt_restriction: ptr to restriction tbl, used by advance
+ *		    thermal throttling to determine how many tx/rx streams
+ *		    should be used in tt state; and can HT be enabled or not
+ * @iwl_tt_trans: ptr to adv trans table, used by advance thermal throttling
+ *		    state transaction
  */
 struct iwl_tt_mgmt {
 	enum iwl_tt_state state;
@@ -63,6 +107,8 @@ struct iwl_tt_mgmt {
 #ifdef CONFIG_IWLWIFI_DEBUG
 	s32 tt_previous_temp;
 #endif
+	struct iwl_tt_restriction *restriction;
+	struct iwl_tt_trans *transaction;
 };
 
 enum {
@@ -92,6 +138,8 @@ struct iwl_power_mgr {
 	u8 user_power_setting; /* set by user through sysfs */
 	u8 power_disabled; /* set by mac80211's CONF_PS */
 	struct iwl_tt_mgmt tt; /* Thermal Throttling Management */
+	bool adv_tt;		/* false: legacy mode */
+				/* true: advance mode */
 	bool ct_kill_toggle;   /* use to toggle the CSR bit when
 				* checking uCode temperature
 				*/
@@ -100,6 +148,9 @@ struct iwl_power_mgr {
 
 int iwl_power_update_mode(struct iwl_priv *priv, bool force);
 int iwl_power_set_user_mode(struct iwl_priv *priv, u16 mode);
+bool iwl_ht_enabled(struct iwl_priv *priv);
+u8 iwl_tx_ant_restriction(struct iwl_priv *priv);
+u8 iwl_rx_ant_restriction(struct iwl_priv *priv);
 void iwl_tt_enter_ct_kill(struct iwl_priv *priv);
 void iwl_tt_exit_ct_kill(struct iwl_priv *priv);
 void iwl_tt_handler(struct iwl_priv *priv);
-- 
cgit v1.2.3


From fbf3a2af3834e8e93e9c2876de62c5b49988e352 Mon Sep 17 00:00:00 2001
From: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Date: Fri, 24 Jul 2009 11:13:04 -0700
Subject: iwlwifi: Thermal Throttling debugfs function

Add debugfs function to display current thermal throttling status for
both Legacy and Advance Thermal Throttling Management

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-debug.h   |  1 +
 drivers/net/wireless/iwlwifi/iwl-debugfs.c | 38 ++++++++++++++++++++++++++++++
 2 files changed, 39 insertions(+)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-debug.h b/drivers/net/wireless/iwlwifi/iwl-debug.h
index 9faf0c2ff608..609a68184dba 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debug.h
+++ b/drivers/net/wireless/iwlwifi/iwl-debug.h
@@ -84,6 +84,7 @@ struct iwl_debugfs {
 		struct dentry *file_status;
 		struct dentry *file_interrupt;
 		struct dentry *file_qos;
+		struct dentry *file_thermal_throttling;
 #ifdef CONFIG_IWLWIFI_LEDS
 		struct dentry *file_led;
 #endif
diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
index 0ab3463aa07e..748dc31877bc 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
@@ -618,6 +618,41 @@ static ssize_t iwl_dbgfs_led_read(struct file *file, char __user *user_buf,
 }
 #endif
 
+static ssize_t iwl_dbgfs_thermal_throttling_read(struct file *file,
+				char __user *user_buf,
+				size_t count, loff_t *ppos)
+{
+	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+	struct iwl_tt_mgmt *tt = &priv->power_data.tt;
+	struct iwl_tt_restriction *restriction;
+	char buf[100];
+	int pos = 0;
+	const size_t bufsz = sizeof(buf);
+	ssize_t ret;
+
+	pos += scnprintf(buf + pos, bufsz - pos,
+			"Thermal Throttling Mode: %s\n",
+			(priv->power_data.adv_tt)
+			? "Advance" : "Legacy");
+	pos += scnprintf(buf + pos, bufsz - pos,
+			"Thermal Throttling State: %d\n",
+			tt->state);
+	if (priv->power_data.adv_tt) {
+		restriction = tt->restriction + tt->state;
+		pos += scnprintf(buf + pos, bufsz - pos,
+				"Tx mode: %d\n",
+				restriction->tx_stream);
+		pos += scnprintf(buf + pos, bufsz - pos,
+				"Rx mode: %d\n",
+				restriction->rx_stream);
+		pos += scnprintf(buf + pos, bufsz - pos,
+				"HT mode: %d\n",
+				restriction->is_ht);
+	}
+	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+	return ret;
+}
+
 DEBUGFS_READ_WRITE_FILE_OPS(sram);
 DEBUGFS_WRITE_FILE_OPS(log_event);
 DEBUGFS_READ_FILE_OPS(nvm);
@@ -631,6 +666,7 @@ DEBUGFS_READ_FILE_OPS(qos);
 #ifdef CONFIG_IWLWIFI_LEDS
 DEBUGFS_READ_FILE_OPS(led);
 #endif
+DEBUGFS_READ_FILE_OPS(thermal_throttling);
 
 /*
  * Create the debugfs files and directories
@@ -671,6 +707,7 @@ int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
 #ifdef CONFIG_IWLWIFI_LEDS
 	DEBUGFS_ADD_FILE(led, data);
 #endif
+	DEBUGFS_ADD_FILE(thermal_throttling, data);
 	DEBUGFS_ADD_BOOL(disable_sensitivity, rf, &priv->disable_sens_cal);
 	DEBUGFS_ADD_BOOL(disable_chain_noise, rf,
 			 &priv->disable_chain_noise_cal);
@@ -709,6 +746,7 @@ void iwl_dbgfs_unregister(struct iwl_priv *priv)
 #ifdef CONFIG_IWLWIFI_LEDS
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_led);
 #endif
+	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_thermal_throttling);
 	DEBUGFS_REMOVE(priv->dbgfs->dir_data);
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_sensitivity);
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_chain_noise);
-- 
cgit v1.2.3


From c2acea8e9b86ba5a5469ff477445676a223af4e2 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Fri, 24 Jul 2009 11:13:05 -0700
Subject: iwlwifi: fix up command sending

The current command sending in iwlwifi is a bit of a mess:
 1) there is a struct, iwl_cmd, that contains both driver
    and device data in a single packed structure -- this
    is very confusing
 2) the on-stack data and the command metadata share a
    structure by embedding the latter in the former, which
    is also rather confusing because it leads to weird
    unions and similarly odd constructs
 3) each txq always has enough space for 256 commands,
    even if only 32 end up being used

This patch fixes these things:
 1) rename iwl_cmd to iwl_device_cmd and keep track of
    command metadata and device command separately, in
    two arrays in each tx queue
 2) remove the 'meta' member from iwl_host_cmd and only
    put in the required members
 3) allocate the cmd/meta arrays separately instead of
    embedding them into the txq structure

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-3945-led.c |  6 +-
 drivers/net/wireless/iwlwifi/iwl-3945.c     | 18 +++---
 drivers/net/wireless/iwlwifi/iwl-3945.h     |  9 +--
 drivers/net/wireless/iwlwifi/iwl-agn.c      |  4 +-
 drivers/net/wireless/iwlwifi/iwl-calib.c    |  4 +-
 drivers/net/wireless/iwlwifi/iwl-core.c     |  4 +-
 drivers/net/wireless/iwlwifi/iwl-core.h     |  2 +-
 drivers/net/wireless/iwlwifi/iwl-dev.h      | 69 ++++++++++++---------
 drivers/net/wireless/iwlwifi/iwl-hcmd.c     | 48 +++++++--------
 drivers/net/wireless/iwlwifi/iwl-led.c      |  4 +-
 drivers/net/wireless/iwlwifi/iwl-scan.c     |  8 +--
 drivers/net/wireless/iwlwifi/iwl-sta.c      | 30 ++++-----
 drivers/net/wireless/iwlwifi/iwl-tx.c       | 96 ++++++++++++++++++-----------
 drivers/net/wireless/iwlwifi/iwl3945-base.c | 20 +++---
 14 files changed, 180 insertions(+), 142 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-3945-led.c b/drivers/net/wireless/iwlwifi/iwl-3945-led.c
index 225e5f889346..b37938217f53 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945-led.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945-led.c
@@ -80,7 +80,7 @@ static const struct {
 #define IWL_SOLID_BLINK_IDX (ARRAY_SIZE(blink_tbl) - 1)
 
 static int iwl3945_led_cmd_callback(struct iwl_priv *priv,
-				    struct iwl_cmd *cmd,
+				    struct iwl_device_cmd *cmd,
 				    struct sk_buff *skb)
 {
 	return 1;
@@ -99,8 +99,8 @@ static int iwl_send_led_cmd(struct iwl_priv *priv,
 		.id = REPLY_LEDS_CMD,
 		.len = sizeof(struct iwl_led_cmd),
 		.data = led_cmd,
-		.meta.flags = CMD_ASYNC,
-		.meta.u.callback = iwl3945_led_cmd_callback,
+		.flags = CMD_ASYNC,
+		.callback = iwl3945_led_cmd_callback,
 	};
 
 	return iwl_send_cmd(priv, &cmd);
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c
index 8ee403cd9b99..e1b0ef3c56a3 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945.c
@@ -749,8 +749,8 @@ void iwl3945_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq)
 	/* Unmap tx_cmd */
 	if (counter)
 		pci_unmap_single(dev,
-				pci_unmap_addr(&txq->cmd[index]->meta, mapping),
-				pci_unmap_len(&txq->cmd[index]->meta, len),
+				pci_unmap_addr(&txq->meta[index], mapping),
+				pci_unmap_len(&txq->meta[index], len),
 				PCI_DMA_TODEVICE);
 
 	/* unmap chunks if any */
@@ -774,9 +774,11 @@ void iwl3945_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq)
  * iwl3945_hw_build_tx_cmd_rate - Add rate portion to TX_CMD:
  *
 */
-void iwl3945_hw_build_tx_cmd_rate(struct iwl_priv *priv, struct iwl_cmd *cmd,
-			      struct ieee80211_tx_info *info,
-			      struct ieee80211_hdr *hdr, int sta_id, int tx_id)
+void iwl3945_hw_build_tx_cmd_rate(struct iwl_priv *priv,
+				  struct iwl_device_cmd *cmd,
+				  struct ieee80211_tx_info *info,
+				  struct ieee80211_hdr *hdr,
+				  int sta_id, int tx_id)
 {
 	u16 hw_value = ieee80211_get_tx_rate(priv->hw, info)->hw_value;
 	u16 rate_index = min(hw_value & 0xffff, IWL_RATE_COUNT - 1);
@@ -1858,7 +1860,7 @@ static int iwl3945_send_rxon_assoc(struct iwl_priv *priv)
 	struct iwl_host_cmd cmd = {
 		.id = REPLY_RXON_ASSOC,
 		.len = sizeof(rxon_assoc),
-		.meta.flags = CMD_WANT_SKB,
+		.flags = CMD_WANT_SKB,
 		.data = &rxon_assoc,
 	};
 	const struct iwl_rxon_cmd *rxon1 = &priv->staging_rxon;
@@ -1882,14 +1884,14 @@ static int iwl3945_send_rxon_assoc(struct iwl_priv *priv)
 	if (rc)
 		return rc;
 
-	res = (struct iwl_rx_packet *)cmd.meta.u.skb->data;
+	res = (struct iwl_rx_packet *)cmd.reply_skb->data;
 	if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
 		IWL_ERR(priv, "Bad return from REPLY_RXON_ASSOC command\n");
 		rc = -EIO;
 	}
 
 	priv->alloc_rxb_skb--;
-	dev_kfree_skb_any(cmd.meta.u.skb);
+	dev_kfree_skb_any(cmd.reply_skb);
 
 	return rc;
 }
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.h b/drivers/net/wireless/iwlwifi/iwl-3945.h
index f2ffc48cbaf8..f24036909916 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.h
+++ b/drivers/net/wireless/iwlwifi/iwl-3945.h
@@ -254,10 +254,11 @@ extern int iwl3945_hw_tx_queue_init(struct iwl_priv *priv,
 				struct iwl_tx_queue *txq);
 extern unsigned int iwl3945_hw_get_beacon_cmd(struct iwl_priv *priv,
 				 struct iwl3945_frame *frame, u8 rate);
-void iwl3945_hw_build_tx_cmd_rate(struct iwl_priv *priv, struct iwl_cmd *cmd,
-				     struct ieee80211_tx_info *info,
-				     struct ieee80211_hdr *hdr,
-				     int sta_id, int tx_id);
+void iwl3945_hw_build_tx_cmd_rate(struct iwl_priv *priv,
+				  struct iwl_device_cmd *cmd,
+				  struct ieee80211_tx_info *info,
+				  struct ieee80211_hdr *hdr,
+				  int sta_id, int tx_id);
 extern int iwl3945_hw_reg_send_txpower(struct iwl_priv *priv);
 extern int iwl3945_hw_reg_set_txpower(struct iwl_priv *priv, s8 power);
 extern void iwl3945_hw_rx_statistics(struct iwl_priv *priv,
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index 23ae9914c84b..4cb1a1b73483 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -442,8 +442,8 @@ void iwl_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq)
 	/* Unmap tx_cmd */
 	if (num_tbs)
 		pci_unmap_single(dev,
-				pci_unmap_addr(&txq->cmd[index]->meta, mapping),
-				pci_unmap_len(&txq->cmd[index]->meta, len),
+				pci_unmap_addr(&txq->meta[index], mapping),
+				pci_unmap_len(&txq->meta[index], len),
 				PCI_DMA_BIDIRECTIONAL);
 
 	/* Unmap chunks, if any. */
diff --git a/drivers/net/wireless/iwlwifi/iwl-calib.c b/drivers/net/wireless/iwlwifi/iwl-calib.c
index f8bf592e939c..13180d6ee2f7 100644
--- a/drivers/net/wireless/iwlwifi/iwl-calib.c
+++ b/drivers/net/wireless/iwlwifi/iwl-calib.c
@@ -86,7 +86,7 @@ int iwl_send_calib_results(struct iwl_priv *priv)
 
 	struct iwl_host_cmd hcmd = {
 		.id = REPLY_PHY_CALIBRATION_CMD,
-		.meta.flags = CMD_SIZE_HUGE,
+		.flags = CMD_SIZE_HUGE,
 	};
 
 	for (i = 0; i < IWL_CALIB_MAX; i++) {
@@ -419,7 +419,7 @@ static int iwl_sensitivity_write(struct iwl_priv *priv)
 	struct iwl_host_cmd cmd_out = {
 		.id = SENSITIVITY_CMD,
 		.len = sizeof(struct iwl_sensitivity_cmd),
-		.meta.flags = CMD_ASYNC,
+		.flags = CMD_ASYNC,
 		.data = &cmd,
 	};
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index d8aeb24db90a..710dd41c3418 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -2089,7 +2089,7 @@ int iwl_send_statistics_request(struct iwl_priv *priv, u8 flags)
 	u32 stat_flags = 0;
 	struct iwl_host_cmd cmd = {
 		.id = REPLY_STATISTICS_CMD,
-		.meta.flags = flags,
+		.flags = flags,
 		.len = sizeof(stat_flags),
 		.data = (u8 *) &stat_flags,
 	};
@@ -2282,7 +2282,7 @@ int iwl_send_card_state(struct iwl_priv *priv, u32 flags, u8 meta_flag)
 		.id = REPLY_CARD_STATE_CMD,
 		.len = sizeof(u32),
 		.data = &flags,
-		.meta.flags = meta_flag,
+		.flags = meta_flag,
 	};
 
 	return iwl_send_cmd(priv, &cmd);
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h
index 614ec7cc5b31..4156debec39c 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.h
+++ b/drivers/net/wireless/iwlwifi/iwl-core.h
@@ -447,7 +447,7 @@ int __must_check iwl_send_cmd_pdu(struct iwl_priv *priv, u8 id,
 int iwl_send_cmd_pdu_async(struct iwl_priv *priv, u8 id, u16 len,
 			   const void *data,
 			   int (*callback)(struct iwl_priv *priv,
-					   struct iwl_cmd *cmd,
+					   struct iwl_device_cmd *cmd,
 					   struct sk_buff *skb));
 
 int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index cddf17350c4b..ce765f79275a 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -150,6 +150,31 @@ struct iwl_rx_mem_buffer {
 	struct list_head list;
 };
 
+/* defined below */
+struct iwl_device_cmd;
+
+struct iwl_cmd_meta {
+	/* only for SYNC commands, iff the reply skb is wanted */
+	struct iwl_host_cmd *source;
+	/*
+	 * only for ASYNC commands
+	 * (which is somewhat stupid -- look at iwl-sta.c for instance
+	 * which duplicates a bunch of code because the callback isn't
+	 * invoked for SYNC commands, if it were and its result passed
+	 * through it would be simpler...)
+	 */
+	int (*callback)(struct iwl_priv *priv,
+			struct iwl_device_cmd *cmd,
+			struct sk_buff *skb);
+
+	/* The CMD_SIZE_HUGE flag bit indicates that the command
+	 * structure is stored at the end of the shared queue memory. */
+	u32 flags;
+
+	DECLARE_PCI_UNMAP_ADDR(mapping)
+	DECLARE_PCI_UNMAP_LEN(len)
+};
+
 /*
  * Generic queue structure
  *
@@ -177,7 +202,8 @@ struct iwl_tx_info {
  * struct iwl_tx_queue - Tx Queue for DMA
  * @q: generic Rx/Tx queue descriptor
  * @bd: base of circular buffer of TFDs
- * @cmd: array of command/Tx buffers
+ * @cmd: array of command/TX buffer pointers
+ * @meta: array of meta data for each command/tx buffer
  * @dma_addr_cmd: physical address of cmd/tx buffer array
  * @txb: array of per-TFD driver data
  * @need_update: indicates need to update read/write index
@@ -192,7 +218,8 @@ struct iwl_tx_info {
 struct iwl_tx_queue {
 	struct iwl_queue q;
 	void *tfds;
-	struct iwl_cmd *cmd[TFD_TX_CMD_SLOTS];
+	struct iwl_device_cmd **cmd;
+	struct iwl_cmd_meta *meta;
 	struct iwl_tx_info *txb;
 	u8 need_update;
 	u8 sched_retry;
@@ -329,35 +356,16 @@ enum {
 	CMD_WANT_SKB = (1 << 2),
 };
 
-struct iwl_cmd;
-struct iwl_priv;
-
-struct iwl_cmd_meta {
-	struct iwl_cmd_meta *source;
-	union {
-		struct sk_buff *skb;
-		int (*callback)(struct iwl_priv *priv,
-				struct iwl_cmd *cmd, struct sk_buff *skb);
-	} __attribute__ ((packed)) u;
-
-	/* The CMD_SIZE_HUGE flag bit indicates that the command
-	 * structure is stored at the end of the shared queue memory. */
-	u32 flags;
-	DECLARE_PCI_UNMAP_ADDR(mapping)
-	DECLARE_PCI_UNMAP_LEN(len)
-} __attribute__ ((packed));
-
 #define IWL_CMD_MAX_PAYLOAD 320
 
 /**
- * struct iwl_cmd
+ * struct iwl_device_cmd
  *
  * For allocation of the command and tx queues, this establishes the overall
  * size of the largest command we send to uCode, except for a scan command
  * (which is relatively huge; space is allocated separately).
  */
-struct iwl_cmd {
-	struct iwl_cmd_meta meta;	/* driver data */
+struct iwl_device_cmd {
 	struct iwl_cmd_header hdr;	/* uCode API */
 	union {
 		u32 flags;
@@ -369,17 +377,20 @@ struct iwl_cmd {
 	} __attribute__ ((packed)) cmd;
 } __attribute__ ((packed));
 
+#define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_device_cmd))
+
 
 struct iwl_host_cmd {
-	u8 id;
-	u16 len;
-	struct iwl_cmd_meta meta;
 	const void *data;
+	struct sk_buff *reply_skb;
+	int (*callback)(struct iwl_priv *priv,
+			struct iwl_device_cmd *cmd,
+			struct sk_buff *skb);
+	u32 flags;
+	u16 len;
+	u8 id;
 };
 
-#define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_cmd) - \
-			      sizeof(struct iwl_cmd_meta))
-
 /*
  * RX related structures and functions
  */
diff --git a/drivers/net/wireless/iwlwifi/iwl-hcmd.c b/drivers/net/wireless/iwlwifi/iwl-hcmd.c
index 17d61ac8ed61..d8a3eac8ceb7 100644
--- a/drivers/net/wireless/iwlwifi/iwl-hcmd.c
+++ b/drivers/net/wireless/iwlwifi/iwl-hcmd.c
@@ -104,7 +104,8 @@ EXPORT_SYMBOL(get_cmd_string);
 #define HOST_COMPLETE_TIMEOUT (HZ / 2)
 
 static int iwl_generic_cmd_callback(struct iwl_priv *priv,
-				    struct iwl_cmd *cmd, struct sk_buff *skb)
+				    struct iwl_device_cmd *cmd,
+				    struct sk_buff *skb)
 {
 	struct iwl_rx_packet *pkt = NULL;
 
@@ -142,14 +143,14 @@ static int iwl_send_cmd_async(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
 {
 	int ret;
 
-	BUG_ON(!(cmd->meta.flags & CMD_ASYNC));
+	BUG_ON(!(cmd->flags & CMD_ASYNC));
 
 	/* An asynchronous command can not expect an SKB to be set. */
-	BUG_ON(cmd->meta.flags & CMD_WANT_SKB);
+	BUG_ON(cmd->flags & CMD_WANT_SKB);
 
 	/* Assign a generic callback if one is not provided */
-	if (!cmd->meta.u.callback)
-		cmd->meta.u.callback = iwl_generic_cmd_callback;
+	if (!cmd->callback)
+		cmd->callback = iwl_generic_cmd_callback;
 
 	if (test_bit(STATUS_EXIT_PENDING, &priv->status))
 		return -EBUSY;
@@ -168,10 +169,10 @@ int iwl_send_cmd_sync(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
 	int cmd_idx;
 	int ret;
 
-	BUG_ON(cmd->meta.flags & CMD_ASYNC);
+	BUG_ON(cmd->flags & CMD_ASYNC);
 
 	 /* A synchronous command can not have a callback set. */
-	BUG_ON(cmd->meta.u.callback != NULL);
+	BUG_ON(cmd->callback);
 
 	if (test_and_set_bit(STATUS_HCMD_SYNC_ACTIVE, &priv->status)) {
 		IWL_ERR(priv,
@@ -183,9 +184,6 @@ int iwl_send_cmd_sync(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
 
 	set_bit(STATUS_HCMD_ACTIVE, &priv->status);
 
-	if (cmd->meta.flags & CMD_WANT_SKB)
-		cmd->meta.source = &cmd->meta;
-
 	cmd_idx = iwl_enqueue_hcmd(priv, cmd);
 	if (cmd_idx < 0) {
 		ret = cmd_idx;
@@ -222,7 +220,7 @@ int iwl_send_cmd_sync(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
 		ret = -EIO;
 		goto fail;
 	}
-	if ((cmd->meta.flags & CMD_WANT_SKB) && !cmd->meta.u.skb) {
+	if ((cmd->flags & CMD_WANT_SKB) && !cmd->reply_skb) {
 		IWL_ERR(priv, "Error: Response NULL in '%s'\n",
 			  get_cmd_string(cmd->id));
 		ret = -EIO;
@@ -233,20 +231,20 @@ int iwl_send_cmd_sync(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
 	goto out;
 
 cancel:
-	if (cmd->meta.flags & CMD_WANT_SKB) {
-		struct iwl_cmd *qcmd;
-
-		/* Cancel the CMD_WANT_SKB flag for the cmd in the
+	if (cmd->flags & CMD_WANT_SKB) {
+		/*
+		 * Cancel the CMD_WANT_SKB flag for the cmd in the
 		 * TX cmd queue. Otherwise in case the cmd comes
 		 * in later, it will possibly set an invalid
-		 * address (cmd->meta.source). */
-		qcmd = priv->txq[IWL_CMD_QUEUE_NUM].cmd[cmd_idx];
-		qcmd->meta.flags &= ~CMD_WANT_SKB;
+		 * address (cmd->meta.source).
+		 */
+		priv->txq[IWL_CMD_QUEUE_NUM].meta[cmd_idx].flags &=
+							~CMD_WANT_SKB;
 	}
 fail:
-	if (cmd->meta.u.skb) {
-		dev_kfree_skb_any(cmd->meta.u.skb);
-		cmd->meta.u.skb = NULL;
+	if (cmd->reply_skb) {
+		dev_kfree_skb_any(cmd->reply_skb);
+		cmd->reply_skb = NULL;
 	}
 out:
 	clear_bit(STATUS_HCMD_SYNC_ACTIVE, &priv->status);
@@ -256,7 +254,7 @@ EXPORT_SYMBOL(iwl_send_cmd_sync);
 
 int iwl_send_cmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
 {
-	if (cmd->meta.flags & CMD_ASYNC)
+	if (cmd->flags & CMD_ASYNC)
 		return iwl_send_cmd_async(priv, cmd);
 
 	return iwl_send_cmd_sync(priv, cmd);
@@ -278,7 +276,7 @@ EXPORT_SYMBOL(iwl_send_cmd_pdu);
 int iwl_send_cmd_pdu_async(struct iwl_priv *priv,
 			   u8 id, u16 len, const void *data,
 			   int (*callback)(struct iwl_priv *priv,
-					   struct iwl_cmd *cmd,
+					   struct iwl_device_cmd *cmd,
 					   struct sk_buff *skb))
 {
 	struct iwl_host_cmd cmd = {
@@ -287,8 +285,8 @@ int iwl_send_cmd_pdu_async(struct iwl_priv *priv,
 		.data = data,
 	};
 
-	cmd.meta.flags |= CMD_ASYNC;
-	cmd.meta.u.callback = callback;
+	cmd.flags |= CMD_ASYNC;
+	cmd.callback = callback;
 
 	return iwl_send_cmd_async(priv, &cmd);
 }
diff --git a/drivers/net/wireless/iwlwifi/iwl-led.c b/drivers/net/wireless/iwlwifi/iwl-led.c
index 8c8115293b3c..7cce8f85bcc6 100644
--- a/drivers/net/wireless/iwlwifi/iwl-led.c
+++ b/drivers/net/wireless/iwlwifi/iwl-led.c
@@ -91,8 +91,8 @@ static int iwl_send_led_cmd(struct iwl_priv *priv, struct iwl_led_cmd *led_cmd)
 		.id = REPLY_LEDS_CMD,
 		.len = sizeof(struct iwl_led_cmd),
 		.data = led_cmd,
-		.meta.flags = CMD_ASYNC,
-		.meta.u.callback = NULL,
+		.flags = CMD_ASYNC,
+		.callback = NULL,
 	};
 	u32 reg;
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-scan.c b/drivers/net/wireless/iwlwifi/iwl-scan.c
index 00398d973a07..c4c916df4a43 100644
--- a/drivers/net/wireless/iwlwifi/iwl-scan.c
+++ b/drivers/net/wireless/iwlwifi/iwl-scan.c
@@ -115,7 +115,7 @@ static int iwl_send_scan_abort(struct iwl_priv *priv)
 	struct iwl_rx_packet *res;
 	struct iwl_host_cmd cmd = {
 		.id = REPLY_SCAN_ABORT_CMD,
-		.meta.flags = CMD_WANT_SKB,
+		.flags = CMD_WANT_SKB,
 	};
 
 	/* If there isn't a scan actively going on in the hardware
@@ -132,7 +132,7 @@ static int iwl_send_scan_abort(struct iwl_priv *priv)
 		return ret;
 	}
 
-	res = (struct iwl_rx_packet *)cmd.meta.u.skb->data;
+	res = (struct iwl_rx_packet *)cmd.reply_skb->data;
 	if (res->u.status != CAN_ABORT_STATUS) {
 		/* The scan abort will return 1 for success or
 		 * 2 for "failure".  A failure condition can be
@@ -146,7 +146,7 @@ static int iwl_send_scan_abort(struct iwl_priv *priv)
 	}
 
 	priv->alloc_rxb_skb--;
-	dev_kfree_skb_any(cmd.meta.u.skb);
+	dev_kfree_skb_any(cmd.reply_skb);
 
 	return ret;
 }
@@ -567,7 +567,7 @@ static void iwl_bg_request_scan(struct work_struct *data)
 	struct iwl_host_cmd cmd = {
 		.id = REPLY_SCAN_CMD,
 		.len = sizeof(struct iwl_scan_cmd),
-		.meta.flags = CMD_SIZE_HUGE,
+		.flags = CMD_SIZE_HUGE,
 	};
 	struct iwl_scan_cmd *scan;
 	struct ieee80211_conf *conf = NULL;
diff --git a/drivers/net/wireless/iwlwifi/iwl-sta.c b/drivers/net/wireless/iwlwifi/iwl-sta.c
index cbe4e26d053f..1571ace05dde 100644
--- a/drivers/net/wireless/iwlwifi/iwl-sta.c
+++ b/drivers/net/wireless/iwlwifi/iwl-sta.c
@@ -98,7 +98,8 @@ static void iwl_sta_ucode_activate(struct iwl_priv *priv, u8 sta_id)
 }
 
 static int iwl_add_sta_callback(struct iwl_priv *priv,
-				   struct iwl_cmd *cmd, struct sk_buff *skb)
+				struct iwl_device_cmd *cmd,
+				struct sk_buff *skb)
 {
 	struct iwl_rx_packet *res = NULL;
 	struct iwl_addsta_cmd *addsta =
@@ -139,14 +140,14 @@ int iwl_send_add_sta(struct iwl_priv *priv,
 	u8 data[sizeof(*sta)];
 	struct iwl_host_cmd cmd = {
 		.id = REPLY_ADD_STA,
-		.meta.flags = flags,
+		.flags = flags,
 		.data = data,
 	};
 
 	if (flags & CMD_ASYNC)
-		cmd.meta.u.callback = iwl_add_sta_callback;
+		cmd.callback = iwl_add_sta_callback;
 	else
-		cmd.meta.flags |= CMD_WANT_SKB;
+		cmd.flags |= CMD_WANT_SKB;
 
 	cmd.len = priv->cfg->ops->utils->build_addsta_hcmd(sta, data);
 	ret = iwl_send_cmd(priv, &cmd);
@@ -154,7 +155,7 @@ int iwl_send_add_sta(struct iwl_priv *priv,
 	if (ret || (flags & CMD_ASYNC))
 		return ret;
 
-	res = (struct iwl_rx_packet *)cmd.meta.u.skb->data;
+	res = (struct iwl_rx_packet *)cmd.reply_skb->data;
 	if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
 		IWL_ERR(priv, "Bad return from REPLY_ADD_STA (0x%08X)\n",
 			  res->hdr.flags);
@@ -175,7 +176,7 @@ int iwl_send_add_sta(struct iwl_priv *priv,
 	}
 
 	priv->alloc_rxb_skb--;
-	dev_kfree_skb_any(cmd.meta.u.skb);
+	dev_kfree_skb_any(cmd.reply_skb);
 
 	return ret;
 }
@@ -325,7 +326,8 @@ static void iwl_sta_ucode_deactivate(struct iwl_priv *priv, const char *addr)
 }
 
 static int iwl_remove_sta_callback(struct iwl_priv *priv,
-				   struct iwl_cmd *cmd, struct sk_buff *skb)
+				   struct iwl_device_cmd *cmd,
+				   struct sk_buff *skb)
 {
 	struct iwl_rx_packet *res = NULL;
 	struct iwl_rem_sta_cmd *rm_sta =
@@ -368,7 +370,7 @@ static int iwl_send_remove_station(struct iwl_priv *priv, const u8 *addr,
 	struct iwl_host_cmd cmd = {
 		.id = REPLY_REMOVE_STA,
 		.len = sizeof(struct iwl_rem_sta_cmd),
-		.meta.flags = flags,
+		.flags = flags,
 		.data = &rm_sta_cmd,
 	};
 
@@ -377,15 +379,15 @@ static int iwl_send_remove_station(struct iwl_priv *priv, const u8 *addr,
 	memcpy(&rm_sta_cmd.addr, addr , ETH_ALEN);
 
 	if (flags & CMD_ASYNC)
-		cmd.meta.u.callback = iwl_remove_sta_callback;
+		cmd.callback = iwl_remove_sta_callback;
 	else
-		cmd.meta.flags |= CMD_WANT_SKB;
+		cmd.flags |= CMD_WANT_SKB;
 	ret = iwl_send_cmd(priv, &cmd);
 
 	if (ret || (flags & CMD_ASYNC))
 		return ret;
 
-	res = (struct iwl_rx_packet *)cmd.meta.u.skb->data;
+	res = (struct iwl_rx_packet *)cmd.reply_skb->data;
 	if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
 		IWL_ERR(priv, "Bad return from REPLY_REMOVE_STA (0x%08X)\n",
 			  res->hdr.flags);
@@ -406,7 +408,7 @@ static int iwl_send_remove_station(struct iwl_priv *priv, const u8 *addr,
 	}
 
 	priv->alloc_rxb_skb--;
-	dev_kfree_skb_any(cmd.meta.u.skb);
+	dev_kfree_skb_any(cmd.reply_skb);
 
 	return ret;
 }
@@ -525,7 +527,7 @@ int iwl_send_static_wepkey_cmd(struct iwl_priv *priv, u8 send_if_empty)
 	struct iwl_host_cmd cmd = {
 		.id = REPLY_WEPKEY,
 		.data = wep_cmd,
-		.meta.flags = CMD_ASYNC,
+		.flags = CMD_ASYNC,
 	};
 
 	memset(wep_cmd, 0, cmd_size +
@@ -930,7 +932,7 @@ int iwl_send_lq_cmd(struct iwl_priv *priv,
 	struct iwl_host_cmd cmd = {
 		.id = REPLY_TX_LINK_QUALITY_CMD,
 		.len = sizeof(struct iwl_link_quality_cmd),
-		.meta.flags = flags,
+		.flags = flags,
 		.data = lq,
 	};
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-tx.c b/drivers/net/wireless/iwlwifi/iwl-tx.c
index 0912987af603..51ddbab63c23 100644
--- a/drivers/net/wireless/iwlwifi/iwl-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-tx.c
@@ -141,7 +141,7 @@ void iwl_tx_queue_free(struct iwl_priv *priv, int txq_id)
 	     q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd))
 		priv->cfg->ops->lib->txq_free_tfd(priv, txq);
 
-	len = sizeof(struct iwl_cmd) * q->n_window;
+	len = sizeof(struct iwl_device_cmd) * q->n_window;
 
 	/* De-alloc array of command/tx buffers */
 	for (i = 0; i < TFD_TX_CMD_SLOTS; i++)
@@ -156,6 +156,12 @@ void iwl_tx_queue_free(struct iwl_priv *priv, int txq_id)
 	kfree(txq->txb);
 	txq->txb = NULL;
 
+	/* deallocate arrays */
+	kfree(txq->cmd);
+	kfree(txq->meta);
+	txq->cmd = NULL;
+	txq->meta = NULL;
+
 	/* 0-fill queue descriptor structure */
 	memset(txq, 0, sizeof(*txq));
 }
@@ -179,7 +185,7 @@ void iwl_cmd_queue_free(struct iwl_priv *priv)
 	if (q->n_bd == 0)
 		return;
 
-	len = sizeof(struct iwl_cmd) * q->n_window;
+	len = sizeof(struct iwl_device_cmd) * q->n_window;
 	len += IWL_MAX_SCAN_SIZE;
 
 	/* De-alloc array of command/tx buffers */
@@ -318,6 +324,7 @@ int iwl_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq,
 {
 	int i, len;
 	int ret;
+	int actual_slots = slots_num;
 
 	/*
 	 * Alloc buffer array for commands (Tx or other types of commands).
@@ -327,14 +334,22 @@ int iwl_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq,
 	 * For normal Tx queues (all other queues), no super-size command
 	 * space is needed.
 	 */
-	len = sizeof(struct iwl_cmd);
-	for (i = 0; i <= slots_num; i++) {
-		if (i == slots_num) {
-			if (txq_id == IWL_CMD_QUEUE_NUM)
-				len += IWL_MAX_SCAN_SIZE;
-			else
-				continue;
-		}
+	if (txq_id == IWL_CMD_QUEUE_NUM)
+		actual_slots++;
+
+	txq->meta = kzalloc(sizeof(struct iwl_cmd_meta) * actual_slots,
+			    GFP_KERNEL);
+	txq->cmd = kzalloc(sizeof(struct iwl_device_cmd *) * actual_slots,
+			   GFP_KERNEL);
+
+	if (!txq->meta || !txq->cmd)
+		goto out_free_arrays;
+
+	len = sizeof(struct iwl_device_cmd);
+	for (i = 0; i < actual_slots; i++) {
+		/* only happens for cmd queue */
+		if (i == slots_num)
+			len += IWL_MAX_SCAN_SIZE;
 
 		txq->cmd[i] = kmalloc(len, GFP_KERNEL);
 		if (!txq->cmd[i])
@@ -364,15 +379,12 @@ int iwl_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq,
 
 	return 0;
 err:
-	for (i = 0; i < slots_num; i++) {
+	for (i = 0; i < actual_slots; i++)
 		kfree(txq->cmd[i]);
-		txq->cmd[i] = NULL;
-	}
+out_free_arrays:
+	kfree(txq->meta);
+	kfree(txq->cmd);
 
-	if (txq_id == IWL_CMD_QUEUE_NUM) {
-		kfree(txq->cmd[slots_num]);
-		txq->cmd[slots_num] = NULL;
-	}
 	return -ENOMEM;
 }
 EXPORT_SYMBOL(iwl_tx_queue_init);
@@ -673,7 +685,8 @@ int iwl_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 	struct iwl_tx_queue *txq;
 	struct iwl_queue *q;
-	struct iwl_cmd *out_cmd;
+	struct iwl_device_cmd *out_cmd;
+	struct iwl_cmd_meta *out_meta;
 	struct iwl_tx_cmd *tx_cmd;
 	int swq_id, txq_id;
 	dma_addr_t phys_addr;
@@ -766,6 +779,7 @@ int iwl_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
 
 	/* Set up first empty entry in queue's array of Tx/cmd buffers */
 	out_cmd = txq->cmd[q->write_ptr];
+	out_meta = &txq->meta[q->write_ptr];
 	tx_cmd = &out_cmd->cmd.tx;
 	memset(&out_cmd->hdr, 0, sizeof(out_cmd->hdr));
 	memset(tx_cmd, 0, sizeof(struct iwl_tx_cmd));
@@ -828,8 +842,8 @@ int iwl_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
 	txcmd_phys = pci_map_single(priv->pci_dev,
 				    &out_cmd->hdr, len,
 				    PCI_DMA_BIDIRECTIONAL);
-	pci_unmap_addr_set(&out_cmd->meta, mapping, txcmd_phys);
-	pci_unmap_len_set(&out_cmd->meta, len, len);
+	pci_unmap_addr_set(out_meta, mapping, txcmd_phys);
+	pci_unmap_len_set(out_meta, len, len);
 	/* Add buffer containing Tx command and MAC(!) header to TFD's
 	 * first entry */
 	priv->cfg->ops->lib->txq_attach_buf_to_tfd(priv, txq,
@@ -923,7 +937,8 @@ int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
 {
 	struct iwl_tx_queue *txq = &priv->txq[IWL_CMD_QUEUE_NUM];
 	struct iwl_queue *q = &txq->q;
-	struct iwl_cmd *out_cmd;
+	struct iwl_device_cmd *out_cmd;
+	struct iwl_cmd_meta *out_meta;
 	dma_addr_t phys_addr;
 	unsigned long flags;
 	int len, ret;
@@ -937,25 +952,31 @@ int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
 	 * the TFD_MAX_PAYLOAD_SIZE, and it sent as a 'small' command then
 	 * we will need to increase the size of the TFD entries */
 	BUG_ON((fix_size > TFD_MAX_PAYLOAD_SIZE) &&
-	       !(cmd->meta.flags & CMD_SIZE_HUGE));
+	       !(cmd->flags & CMD_SIZE_HUGE));
 
 	if (iwl_is_rfkill(priv)) {
 		IWL_DEBUG_INFO(priv, "Not sending command - RF KILL\n");
 		return -EIO;
 	}
 
-	if (iwl_queue_space(q) < ((cmd->meta.flags & CMD_ASYNC) ? 2 : 1)) {
+	if (iwl_queue_space(q) < ((cmd->flags & CMD_ASYNC) ? 2 : 1)) {
 		IWL_ERR(priv, "No space for Tx\n");
 		return -ENOSPC;
 	}
 
 	spin_lock_irqsave(&priv->hcmd_lock, flags);
 
-	idx = get_cmd_index(q, q->write_ptr, cmd->meta.flags & CMD_SIZE_HUGE);
+	idx = get_cmd_index(q, q->write_ptr, cmd->flags & CMD_SIZE_HUGE);
 	out_cmd = txq->cmd[idx];
+	out_meta = &txq->meta[idx];
+
+	out_meta->flags = cmd->flags;
+	if (cmd->flags & CMD_WANT_SKB)
+		out_meta->source = cmd;
+	if (cmd->flags & CMD_ASYNC)
+		out_meta->callback = cmd->callback;
 
 	out_cmd->hdr.cmd = cmd->id;
-	memcpy(&out_cmd->meta, &cmd->meta, sizeof(cmd->meta));
 	memcpy(&out_cmd->cmd.payload, cmd->data, cmd->len);
 
 	/* At this point, the out_cmd now has all of the incoming cmd
@@ -964,9 +985,9 @@ int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
 	out_cmd->hdr.flags = 0;
 	out_cmd->hdr.sequence = cpu_to_le16(QUEUE_TO_SEQ(IWL_CMD_QUEUE_NUM) |
 			INDEX_TO_SEQ(q->write_ptr));
-	if (out_cmd->meta.flags & CMD_SIZE_HUGE)
+	if (cmd->flags & CMD_SIZE_HUGE)
 		out_cmd->hdr.sequence |= SEQ_HUGE_FRAME;
-	len = sizeof(struct iwl_cmd) - sizeof(struct iwl_cmd_meta);
+	len = sizeof(struct iwl_device_cmd);
 	len += (idx == TFD_CMD_SLOTS) ?  IWL_MAX_SCAN_SIZE : 0;
 
 
@@ -998,8 +1019,8 @@ int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
 
 	phys_addr = pci_map_single(priv->pci_dev, &out_cmd->hdr,
 				   fix_size, PCI_DMA_BIDIRECTIONAL);
-	pci_unmap_addr_set(&out_cmd->meta, mapping, phys_addr);
-	pci_unmap_len_set(&out_cmd->meta, len, fix_size);
+	pci_unmap_addr_set(out_meta, mapping, phys_addr);
+	pci_unmap_len_set(out_meta, len, fix_size);
 
 	priv->cfg->ops->lib->txq_attach_buf_to_tfd(priv, txq,
 						   phys_addr, fix_size, 1,
@@ -1068,8 +1089,8 @@ static void iwl_hcmd_queue_reclaim(struct iwl_priv *priv, int txq_id,
 	}
 
 	pci_unmap_single(priv->pci_dev,
-		pci_unmap_addr(&txq->cmd[cmd_idx]->meta, mapping),
-		pci_unmap_len(&txq->cmd[cmd_idx]->meta, len),
+		pci_unmap_addr(&txq->meta[cmd_idx], mapping),
+		pci_unmap_len(&txq->meta[cmd_idx], len),
 		PCI_DMA_BIDIRECTIONAL);
 
 	for (idx = iwl_queue_inc_wrap(idx, q->n_bd); q->read_ptr != idx;
@@ -1100,7 +1121,8 @@ void iwl_tx_cmd_complete(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
 	int index = SEQ_TO_INDEX(sequence);
 	int cmd_index;
 	bool huge = !!(pkt->hdr.sequence & SEQ_HUGE_FRAME);
-	struct iwl_cmd *cmd;
+	struct iwl_device_cmd *cmd;
+	struct iwl_cmd_meta *meta;
 
 	/* If a Tx command is being handled and it isn't in the actual
 	 * command queue then there a command routing bug has been introduced
@@ -1116,18 +1138,18 @@ void iwl_tx_cmd_complete(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
 
 	cmd_index = get_cmd_index(&priv->txq[IWL_CMD_QUEUE_NUM].q, index, huge);
 	cmd = priv->txq[IWL_CMD_QUEUE_NUM].cmd[cmd_index];
+	meta = &priv->txq[IWL_CMD_QUEUE_NUM].meta[cmd_index];
 
 	/* Input error checking is done when commands are added to queue. */
-	if (cmd->meta.flags & CMD_WANT_SKB) {
-		cmd->meta.source->u.skb = rxb->skb;
+	if (meta->flags & CMD_WANT_SKB) {
+		meta->source->reply_skb = rxb->skb;
 		rxb->skb = NULL;
-	} else if (cmd->meta.u.callback &&
-		   !cmd->meta.u.callback(priv, cmd, rxb->skb))
+	} else if (meta->callback && !meta->callback(priv, cmd, rxb->skb))
 		rxb->skb = NULL;
 
 	iwl_hcmd_queue_reclaim(priv, txq_id, index, cmd_index);
 
-	if (!(cmd->meta.flags & CMD_ASYNC)) {
+	if (!(meta->flags & CMD_ASYNC)) {
 		clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
 		wake_up_interruptible(&priv->wait_command_queue);
 	}
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index 2cc7e30d7743..5ded8983b915 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -363,7 +363,7 @@ static void iwl3945_unset_hw_params(struct iwl_priv *priv)
 
 static void iwl3945_build_tx_cmd_hwcrypto(struct iwl_priv *priv,
 				      struct ieee80211_tx_info *info,
-				      struct iwl_cmd *cmd,
+				      struct iwl_device_cmd *cmd,
 				      struct sk_buff *skb_frag,
 				      int sta_id)
 {
@@ -403,7 +403,7 @@ static void iwl3945_build_tx_cmd_hwcrypto(struct iwl_priv *priv,
  * handle build REPLY_TX command notification.
  */
 static void iwl3945_build_tx_cmd_basic(struct iwl_priv *priv,
-				  struct iwl_cmd *cmd,
+				  struct iwl_device_cmd *cmd,
 				  struct ieee80211_tx_info *info,
 				  struct ieee80211_hdr *hdr, u8 std_id)
 {
@@ -476,7 +476,8 @@ static int iwl3945_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
 	struct iwl3945_tx_cmd *tx;
 	struct iwl_tx_queue *txq = NULL;
 	struct iwl_queue *q = NULL;
-	struct iwl_cmd *out_cmd = NULL;
+	struct iwl_device_cmd *out_cmd;
+	struct iwl_cmd_meta *out_meta;
 	dma_addr_t phys_addr;
 	dma_addr_t txcmd_phys;
 	int txq_id = skb_get_queue_mapping(skb);
@@ -565,6 +566,7 @@ static int iwl3945_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
 
 	/* Init first empty entry in queue's array of Tx/cmd buffers */
 	out_cmd = txq->cmd[idx];
+	out_meta = &txq->meta[idx];
 	tx = (struct iwl3945_tx_cmd *)out_cmd->cmd.payload;
 	memset(&out_cmd->hdr, 0, sizeof(out_cmd->hdr));
 	memset(tx, 0, sizeof(*tx));
@@ -642,8 +644,8 @@ static int iwl3945_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
 				    len, PCI_DMA_TODEVICE);
 	/* we do not map meta data ... so we can safely access address to
 	 * provide to unmap command*/
-	pci_unmap_addr_set(&out_cmd->meta, mapping, txcmd_phys);
-	pci_unmap_len_set(&out_cmd->meta, len, len);
+	pci_unmap_addr_set(out_meta, mapping, txcmd_phys);
+	pci_unmap_len_set(out_meta, len, len);
 
 	/* Add buffer containing Tx command and MAC(!) header to TFD's
 	 * first entry */
@@ -753,7 +755,7 @@ static int iwl3945_get_measurement(struct iwl_priv *priv,
 	struct iwl_host_cmd cmd = {
 		.id = REPLY_SPECTRUM_MEASUREMENT_CMD,
 		.data = (void *)&spectrum,
-		.meta.flags = CMD_WANT_SKB,
+		.flags = CMD_WANT_SKB,
 	};
 	u32 add_time = le64_to_cpu(params->start_time);
 	int rc;
@@ -794,7 +796,7 @@ static int iwl3945_get_measurement(struct iwl_priv *priv,
 	if (rc)
 		return rc;
 
-	res = (struct iwl_rx_packet *)cmd.meta.u.skb->data;
+	res = (struct iwl_rx_packet *)cmd.reply_skb->data;
 	if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
 		IWL_ERR(priv, "Bad return from REPLY_RX_ON_ASSOC command\n");
 		rc = -EIO;
@@ -817,7 +819,7 @@ static int iwl3945_get_measurement(struct iwl_priv *priv,
 		break;
 	}
 
-	dev_kfree_skb_any(cmd.meta.u.skb);
+	dev_kfree_skb_any(cmd.reply_skb);
 
 	return rc;
 }
@@ -2717,7 +2719,7 @@ static void iwl3945_bg_request_scan(struct work_struct *data)
 	struct iwl_host_cmd cmd = {
 		.id = REPLY_SCAN_CMD,
 		.len = sizeof(struct iwl3945_scan_cmd),
-		.meta.flags = CMD_SIZE_HUGE,
+		.flags = CMD_SIZE_HUGE,
 	};
 	int rc = 0;
 	struct iwl3945_scan_cmd *scan;
-- 
cgit v1.2.3


From 5696aea6f243e40013d2b00cd140fd006ec20b9c Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Fri, 24 Jul 2009 11:13:06 -0700
Subject: iwlwifi: remove command callback return value

No existing callbacks use anything other than the return
value 1, which means that the caller should free the
reply skb, so it seems safer in terms of not introducing
memory leaks to simply remove the return value and let
the caller always free the skb.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-3945-led.c |  7 +++----
 drivers/net/wireless/iwlwifi/iwl-core.h     |  6 +++---
 drivers/net/wireless/iwlwifi/iwl-dev.h      | 12 ++++++------
 drivers/net/wireless/iwlwifi/iwl-hcmd.c     | 21 +++++++++------------
 drivers/net/wireless/iwlwifi/iwl-sta.c      | 26 ++++++++++----------------
 drivers/net/wireless/iwlwifi/iwl-tx.c       |  4 ++--
 6 files changed, 33 insertions(+), 43 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-3945-led.c b/drivers/net/wireless/iwlwifi/iwl-3945-led.c
index b37938217f53..8c29ded7d02c 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945-led.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945-led.c
@@ -79,11 +79,10 @@ static const struct {
 #define IWL_MAX_BLINK_TBL (ARRAY_SIZE(blink_tbl) - 1) /*Exclude Solid on*/
 #define IWL_SOLID_BLINK_IDX (ARRAY_SIZE(blink_tbl) - 1)
 
-static int iwl3945_led_cmd_callback(struct iwl_priv *priv,
-				    struct iwl_device_cmd *cmd,
-				    struct sk_buff *skb)
+static void iwl3945_led_cmd_callback(struct iwl_priv *priv,
+				     struct iwl_device_cmd *cmd,
+				     struct sk_buff *skb)
 {
-	return 1;
 }
 
 static inline int iwl3945_brightness_to_idx(enum led_brightness brightness)
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h
index 4156debec39c..febcf76e1d41 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.h
+++ b/drivers/net/wireless/iwlwifi/iwl-core.h
@@ -446,9 +446,9 @@ int __must_check iwl_send_cmd_pdu(struct iwl_priv *priv, u8 id,
 				  u16 len, const void *data);
 int iwl_send_cmd_pdu_async(struct iwl_priv *priv, u8 id, u16 len,
 			   const void *data,
-			   int (*callback)(struct iwl_priv *priv,
-					   struct iwl_device_cmd *cmd,
-					   struct sk_buff *skb));
+			   void (*callback)(struct iwl_priv *priv,
+					    struct iwl_device_cmd *cmd,
+					    struct sk_buff *skb));
 
 int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index ce765f79275a..3ca188a95926 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -163,9 +163,9 @@ struct iwl_cmd_meta {
 	 * invoked for SYNC commands, if it were and its result passed
 	 * through it would be simpler...)
 	 */
-	int (*callback)(struct iwl_priv *priv,
-			struct iwl_device_cmd *cmd,
-			struct sk_buff *skb);
+	void (*callback)(struct iwl_priv *priv,
+			 struct iwl_device_cmd *cmd,
+			 struct sk_buff *skb);
 
 	/* The CMD_SIZE_HUGE flag bit indicates that the command
 	 * structure is stored at the end of the shared queue memory. */
@@ -383,9 +383,9 @@ struct iwl_device_cmd {
 struct iwl_host_cmd {
 	const void *data;
 	struct sk_buff *reply_skb;
-	int (*callback)(struct iwl_priv *priv,
-			struct iwl_device_cmd *cmd,
-			struct sk_buff *skb);
+	void (*callback)(struct iwl_priv *priv,
+			 struct iwl_device_cmd *cmd,
+			 struct sk_buff *skb);
 	u32 flags;
 	u16 len;
 	u8 id;
diff --git a/drivers/net/wireless/iwlwifi/iwl-hcmd.c b/drivers/net/wireless/iwlwifi/iwl-hcmd.c
index d8a3eac8ceb7..b82ad15d5189 100644
--- a/drivers/net/wireless/iwlwifi/iwl-hcmd.c
+++ b/drivers/net/wireless/iwlwifi/iwl-hcmd.c
@@ -103,23 +103,23 @@ EXPORT_SYMBOL(get_cmd_string);
 
 #define HOST_COMPLETE_TIMEOUT (HZ / 2)
 
-static int iwl_generic_cmd_callback(struct iwl_priv *priv,
-				    struct iwl_device_cmd *cmd,
-				    struct sk_buff *skb)
+static void iwl_generic_cmd_callback(struct iwl_priv *priv,
+				     struct iwl_device_cmd *cmd,
+				     struct sk_buff *skb)
 {
 	struct iwl_rx_packet *pkt = NULL;
 
 	if (!skb) {
 		IWL_ERR(priv, "Error: Response NULL in %s.\n",
 				get_cmd_string(cmd->hdr.cmd));
-		return 1;
+		return;
 	}
 
 	pkt = (struct iwl_rx_packet *)skb->data;
 	if (pkt->hdr.flags & IWL_CMD_FAILED_MSK) {
 		IWL_ERR(priv, "Bad return from %s (0x%08X)\n",
 			get_cmd_string(cmd->hdr.cmd), pkt->hdr.flags);
-		return 1;
+		return;
 	}
 
 #ifdef CONFIG_IWLWIFI_DEBUG
@@ -128,15 +128,12 @@ static int iwl_generic_cmd_callback(struct iwl_priv *priv,
 	case SENSITIVITY_CMD:
 		IWL_DEBUG_HC_DUMP(priv, "back from %s (0x%08X)\n",
 				get_cmd_string(cmd->hdr.cmd), pkt->hdr.flags);
-				break;
+		break;
 	default:
 		IWL_DEBUG_HC(priv, "back from %s (0x%08X)\n",
 				get_cmd_string(cmd->hdr.cmd), pkt->hdr.flags);
 	}
 #endif
-
-	/* Let iwl_tx_complete free the response skb */
-	return 1;
 }
 
 static int iwl_send_cmd_async(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
@@ -275,9 +272,9 @@ EXPORT_SYMBOL(iwl_send_cmd_pdu);
 
 int iwl_send_cmd_pdu_async(struct iwl_priv *priv,
 			   u8 id, u16 len, const void *data,
-			   int (*callback)(struct iwl_priv *priv,
-					   struct iwl_device_cmd *cmd,
-					   struct sk_buff *skb))
+			   void (*callback)(struct iwl_priv *priv,
+					    struct iwl_device_cmd *cmd,
+					    struct sk_buff *skb))
 {
 	struct iwl_host_cmd cmd = {
 		.id = id,
diff --git a/drivers/net/wireless/iwlwifi/iwl-sta.c b/drivers/net/wireless/iwlwifi/iwl-sta.c
index 1571ace05dde..79ea5cc2c89a 100644
--- a/drivers/net/wireless/iwlwifi/iwl-sta.c
+++ b/drivers/net/wireless/iwlwifi/iwl-sta.c
@@ -97,9 +97,9 @@ static void iwl_sta_ucode_activate(struct iwl_priv *priv, u8 sta_id)
 	spin_unlock_irqrestore(&priv->sta_lock, flags);
 }
 
-static int iwl_add_sta_callback(struct iwl_priv *priv,
-				struct iwl_device_cmd *cmd,
-				struct sk_buff *skb)
+static void iwl_add_sta_callback(struct iwl_priv *priv,
+				 struct iwl_device_cmd *cmd,
+				 struct sk_buff *skb)
 {
 	struct iwl_rx_packet *res = NULL;
 	struct iwl_addsta_cmd *addsta =
@@ -108,14 +108,14 @@ static int iwl_add_sta_callback(struct iwl_priv *priv,
 
 	if (!skb) {
 		IWL_ERR(priv, "Error: Response NULL in REPLY_ADD_STA.\n");
-		return 1;
+		return;
 	}
 
 	res = (struct iwl_rx_packet *)skb->data;
 	if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
 		IWL_ERR(priv, "Bad return from REPLY_ADD_STA (0x%08X)\n",
 			  res->hdr.flags);
-		return 1;
+		return;
 	}
 
 	switch (res->u.add_sta.status) {
@@ -127,9 +127,6 @@ static int iwl_add_sta_callback(struct iwl_priv *priv,
 			     res->u.add_sta.status);
 		break;
 	}
-
-	/* We didn't cache the SKB; let the caller free it */
-	return 1;
 }
 
 int iwl_send_add_sta(struct iwl_priv *priv,
@@ -325,9 +322,9 @@ static void iwl_sta_ucode_deactivate(struct iwl_priv *priv, const char *addr)
 	spin_unlock_irqrestore(&priv->sta_lock, flags);
 }
 
-static int iwl_remove_sta_callback(struct iwl_priv *priv,
-				   struct iwl_device_cmd *cmd,
-				   struct sk_buff *skb)
+static void iwl_remove_sta_callback(struct iwl_priv *priv,
+				    struct iwl_device_cmd *cmd,
+				    struct sk_buff *skb)
 {
 	struct iwl_rx_packet *res = NULL;
 	struct iwl_rem_sta_cmd *rm_sta =
@@ -336,14 +333,14 @@ static int iwl_remove_sta_callback(struct iwl_priv *priv,
 
 	if (!skb) {
 		IWL_ERR(priv, "Error: Response NULL in REPLY_REMOVE_STA.\n");
-		return 1;
+		return;
 	}
 
 	res = (struct iwl_rx_packet *)skb->data;
 	if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
 		IWL_ERR(priv, "Bad return from REPLY_REMOVE_STA (0x%08X)\n",
 		res->hdr.flags);
-		return 1;
+		return;
 	}
 
 	switch (res->u.rem_sta.status) {
@@ -354,9 +351,6 @@ static int iwl_remove_sta_callback(struct iwl_priv *priv,
 		IWL_ERR(priv, "REPLY_REMOVE_STA failed\n");
 		break;
 	}
-
-	/* We didn't cache the SKB; let the caller free it */
-	return 1;
 }
 
 static int iwl_send_remove_station(struct iwl_priv *priv, const u8 *addr,
diff --git a/drivers/net/wireless/iwlwifi/iwl-tx.c b/drivers/net/wireless/iwlwifi/iwl-tx.c
index 51ddbab63c23..e1558db97ec4 100644
--- a/drivers/net/wireless/iwlwifi/iwl-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-tx.c
@@ -1144,8 +1144,8 @@ void iwl_tx_cmd_complete(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
 	if (meta->flags & CMD_WANT_SKB) {
 		meta->source->reply_skb = rxb->skb;
 		rxb->skb = NULL;
-	} else if (meta->callback && !meta->callback(priv, cmd, rxb->skb))
-		rxb->skb = NULL;
+	} else if (meta->callback)
+		meta->callback(priv, cmd, rxb->skb);
 
 	iwl_hcmd_queue_reclaim(priv, txq_id, index, cmd_index);
 
-- 
cgit v1.2.3


From ec74116487278adf6c3db9c3bbdc81c6409c1cbb Mon Sep 17 00:00:00 2001
From: Reinette Chatre <reinette.chatre@intel.com>
Date: Fri, 24 Jul 2009 11:13:08 -0700
Subject: iwlwifi: print packet contents in error case

This data is more useful to debugging that the receive
buffer contents.

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-tx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-tx.c b/drivers/net/wireless/iwlwifi/iwl-tx.c
index e1558db97ec4..660d1a76292b 100644
--- a/drivers/net/wireless/iwlwifi/iwl-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-tx.c
@@ -1132,7 +1132,7 @@ void iwl_tx_cmd_complete(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
 		  txq_id, sequence,
 		  priv->txq[IWL_CMD_QUEUE_NUM].q.read_ptr,
 		  priv->txq[IWL_CMD_QUEUE_NUM].q.write_ptr)) {
-		iwl_print_hex_error(priv, rxb, 32);
+		iwl_print_hex_error(priv, pkt, 32);
 		return;
 	}
 
-- 
cgit v1.2.3


From bcc693a14ddf46170752c185e415ff8609b9f82f Mon Sep 17 00:00:00 2001
From: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Date: Fri, 24 Jul 2009 11:13:09 -0700
Subject: iwlwifi: Name fix for MPDU density for TX aggregation

Fix incorrect name for HT MPDU Density.
default set to 4 uSec

Reported-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-dev.h | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index 3ca188a95926..facbc3daf551 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -491,8 +491,16 @@ union iwl_ht_rate_supp {
 };
 
 #define CFG_HT_RX_AMPDU_FACTOR_DEF  (0x3)
-#define CFG_HT_MPDU_DENSITY_2USEC   (0x5)
-#define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_2USEC
+
+/*
+ * Maximal MPDU density for TX aggregation
+ * 4 - 2us density
+ * 5 - 4us density
+ * 6 - 8us density
+ * 7 - 16us density
+ */
+#define CFG_HT_MPDU_DENSITY_4USEC   (0x5)
+#define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_4USEC
 
 struct iwl_ht_info {
 	/* self configuration data */
-- 
cgit v1.2.3


From 1da46bebb1bb01a77333e6509e74e12b85df5729 Mon Sep 17 00:00:00 2001
From: Pavel Machek <pavel@ucw.cz>
Date: Fri, 24 Jul 2009 11:13:10 -0700
Subject: iwlwifi: fix LED config option

IWLWIFI_LEDS option should certainly have help comment, and should
default to y.

Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/Kconfig | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/Kconfig b/drivers/net/wireless/iwlwifi/Kconfig
index e092af09d6bf..99310c033253 100644
--- a/drivers/net/wireless/iwlwifi/Kconfig
+++ b/drivers/net/wireless/iwlwifi/Kconfig
@@ -9,6 +9,9 @@ config IWLWIFI
 config IWLWIFI_LEDS
 	bool "Enable LED support in iwlagn and iwl3945 drivers"
 	depends on IWLWIFI
+	default y
+	---help---
+	  Select this if you want LED support.
 
 config IWLWIFI_SPECTRUM_MEASUREMENT
 	bool "Enable Spectrum Measurement in iwlagn driver"
-- 
cgit v1.2.3


From f7ea097d9b4e61a816c041c92548aad7c7ed7915 Mon Sep 17 00:00:00 2001
From: Reinette Chatre <reinette.chatre@intel.com>
Date: Fri, 24 Jul 2009 11:13:12 -0700
Subject: iwlagn: fix null pointer access during ucode load on 1000

Commit "iwlwifi: Handle new firmware file with ucode build number
in header" introduced new ucode header parsing routines, but
neglected to initialize these routines for 1000. The system thus goes
into infinite loop trying to load ucode, failing every time with a null
pointer exception as it tries to parse the header.

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Acked-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-1000.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-1000.c b/drivers/net/wireless/iwlwifi/iwl-1000.c
index 80a28184a373..5f7c52053c18 100644
--- a/drivers/net/wireless/iwlwifi/iwl-1000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-1000.c
@@ -124,6 +124,7 @@ static struct iwl_lib_ops iwl1000_lib = {
 };
 
 static struct iwl_ops iwl1000_ops = {
+	.ucode = &iwl5000_ucode,
 	.lib = &iwl1000_lib,
 	.hcmd = &iwl5000_hcmd,
 	.utils = &iwl5000_hcmd_utils,
-- 
cgit v1.2.3


From 6686d17e161dcd0dc6801bcde9e397020bf9edf7 Mon Sep 17 00:00:00 2001
From: Reinette Chatre <reinette.chatre@intel.com>
Date: Fri, 24 Jul 2009 11:13:13 -0700
Subject: iwlagn: fix sparse warning when compiling without debug
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

C [M]  drivers/net/wireless/iwlwifi/iwl-core.o
drivers/net/wireless/iwlwifi/iwl-core.c:1341: warning:
‘iwl_dump_nic_error_log’ defined but not used

Reported-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 710dd41c3418..aafa9fdd6476 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -1291,7 +1291,6 @@ static void iwl_print_rx_config_cmd(struct iwl_priv *priv)
 	IWL_DEBUG_RADIO(priv, "u8[6] bssid_addr: %pM\n", rxon->bssid_addr);
 	IWL_DEBUG_RADIO(priv, "u16 assoc_id: 0x%x\n", le16_to_cpu(rxon->assoc_id));
 }
-#endif
 
 static const char *desc_lookup_text[] = {
 	"OK",
@@ -1496,6 +1495,7 @@ void iwl_dump_nic_event_log(struct iwl_priv *priv)
 	iwl_print_event_log(priv, 0, next_entry, mode);
 
 }
+#endif
 /**
  * iwl_irq_handle_error - called for HW or SW error interrupt from card
  */
-- 
cgit v1.2.3


From 1e4247d457c6a42e4a05cb7dfa4e6ea1fa65c112 Mon Sep 17 00:00:00 2001
From: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Date: Mon, 27 Jul 2009 13:50:15 -0700
Subject: iwlwifi: debugFs to enable/disable HT40 support

Add debugfs file to enable/disable HT40(40MHz) channel support.
By default, 40MHz is supported if AP can support the function.

By echo "1" to "disable_ht40" file, iwlwifi driver will disable the
40MHz support and only allow 20MHz channel.

Because the information exchange happen during association time,
so enable/disable ht40 channel only can be performed when it is not
associated with AP.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-core.c    |  4 +++
 drivers/net/wireless/iwlwifi/iwl-debug.h   |  1 +
 drivers/net/wireless/iwlwifi/iwl-debugfs.c | 46 ++++++++++++++++++++++++++++++
 drivers/net/wireless/iwlwifi/iwl-dev.h     |  1 +
 4 files changed, 52 insertions(+)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index aafa9fdd6476..8570d56b3124 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -632,6 +632,10 @@ u8 iwl_is_fat_tx_allowed(struct iwl_priv *priv,
 		if (!sta_ht_inf->ht_supported)
 			return 0;
 	}
+#ifdef CONFIG_IWLWIFI_DEBUG
+	if (priv->disable_ht40)
+		return 0;
+#endif
 	return iwl_is_channel_extension(priv, priv->band,
 			le16_to_cpu(priv->staging_rxon.channel),
 			iwl_ht_conf->extension_chan_offset);
diff --git a/drivers/net/wireless/iwlwifi/iwl-debug.h b/drivers/net/wireless/iwlwifi/iwl-debug.h
index 609a68184dba..fbe177608bc7 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debug.h
+++ b/drivers/net/wireless/iwlwifi/iwl-debug.h
@@ -88,6 +88,7 @@ struct iwl_debugfs {
 #ifdef CONFIG_IWLWIFI_LEDS
 		struct dentry *file_led;
 #endif
+		struct dentry *file_disable_ht40;
 	} dbgfs_data_files;
 	struct dir_rf_files {
 		struct dentry *file_disable_sensitivity;
diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
index 748dc31877bc..7707a2655994 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
@@ -653,6 +653,49 @@ static ssize_t iwl_dbgfs_thermal_throttling_read(struct file *file,
 	return ret;
 }
 
+static ssize_t iwl_dbgfs_disable_ht40_write(struct file *file,
+					 const char __user *user_buf,
+					 size_t count, loff_t *ppos)
+{
+	struct iwl_priv *priv = file->private_data;
+	char buf[8];
+	int buf_size;
+	int ht40;
+
+	memset(buf, 0, sizeof(buf));
+	buf_size = min(count, sizeof(buf) -  1);
+	if (copy_from_user(buf, user_buf, buf_size))
+		return -EFAULT;
+	if (sscanf(buf, "%d", &ht40) != 1)
+		return -EFAULT;
+	if (!iwl_is_associated(priv))
+		priv->disable_ht40 = ht40 ? true : false;
+	else {
+		IWL_ERR(priv, "Sta associated with AP - "
+			"Change to 40MHz channel support is not allowed\n");
+		return -EINVAL;
+	}
+
+	return count;
+}
+
+static ssize_t iwl_dbgfs_disable_ht40_read(struct file *file,
+					 char __user *user_buf,
+					 size_t count, loff_t *ppos)
+{
+	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+	char buf[100];
+	int pos = 0;
+	const size_t bufsz = sizeof(buf);
+	ssize_t ret;
+
+	pos += scnprintf(buf + pos, bufsz - pos,
+			"11n 40MHz Mode: %s\n",
+			priv->disable_ht40 ? "Disabled" : "Enabled");
+	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+	return ret;
+}
+
 DEBUGFS_READ_WRITE_FILE_OPS(sram);
 DEBUGFS_WRITE_FILE_OPS(log_event);
 DEBUGFS_READ_FILE_OPS(nvm);
@@ -667,6 +710,7 @@ DEBUGFS_READ_FILE_OPS(qos);
 DEBUGFS_READ_FILE_OPS(led);
 #endif
 DEBUGFS_READ_FILE_OPS(thermal_throttling);
+DEBUGFS_READ_WRITE_FILE_OPS(disable_ht40);
 
 /*
  * Create the debugfs files and directories
@@ -708,6 +752,7 @@ int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
 	DEBUGFS_ADD_FILE(led, data);
 #endif
 	DEBUGFS_ADD_FILE(thermal_throttling, data);
+	DEBUGFS_ADD_FILE(disable_ht40, data);
 	DEBUGFS_ADD_BOOL(disable_sensitivity, rf, &priv->disable_sens_cal);
 	DEBUGFS_ADD_BOOL(disable_chain_noise, rf,
 			 &priv->disable_chain_noise_cal);
@@ -747,6 +792,7 @@ void iwl_dbgfs_unregister(struct iwl_priv *priv)
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_led);
 #endif
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_thermal_throttling);
+	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_disable_ht40);
 	DEBUGFS_REMOVE(priv->dbgfs->dir_data);
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_sensitivity);
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_chain_noise);
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index facbc3daf551..0ee3ad245697 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -1164,6 +1164,7 @@ struct iwl_priv {
 	/* debugging info */
 	u32 framecnt_to_us;
 	atomic_t restrict_refcnt;
+	bool disable_ht40;
 #ifdef CONFIG_IWLWIFI_DEBUGFS
 	/* debugfs */
 	struct iwl_debugfs *dbgfs;
-- 
cgit v1.2.3


From e46ab7f0886143846d8da2ca06c2b0e245f34dc6 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Thu, 30 Jul 2009 11:58:16 +0200
Subject: iwlwifi: don't export symbols not needed in other modules

Even with the split into iwlcore/agn/3945 not all symbols
that cross file boundaries are needed in other modules, a
few are only used within iwlcore, for example.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-core.c | 3 ---
 drivers/net/wireless/iwlwifi/iwl-led.c  | 1 -
 drivers/net/wireless/iwlwifi/iwl-rx.c   | 1 -
 drivers/net/wireless/iwlwifi/iwl-sta.c  | 1 -
 4 files changed, 6 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 8570d56b3124..1b5180f8d75e 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -1140,7 +1140,6 @@ void iwl_set_flags_for_band(struct iwl_priv *priv,
 		priv->staging_rxon.flags &= ~RXON_FLG_CCK_MSK;
 	}
 }
-EXPORT_SYMBOL(iwl_set_flags_for_band);
 
 /*
  * initialize rxon structure with default values from eeprom
@@ -2291,7 +2290,6 @@ int iwl_send_card_state(struct iwl_priv *priv, u32 flags, u8 meta_flag)
 
 	return iwl_send_cmd(priv, &cmd);
 }
-EXPORT_SYMBOL(iwl_send_card_state);
 
 void iwl_rx_pm_sleep_notif(struct iwl_priv *priv,
 			   struct iwl_rx_mem_buffer *rxb)
@@ -2335,7 +2333,6 @@ void iwl_clear_isr_stats(struct iwl_priv *priv)
 {
 	memset(&priv->isr_stats, 0, sizeof(priv->isr_stats));
 }
-EXPORT_SYMBOL(iwl_clear_isr_stats);
 
 int iwl_mac_conf_tx(struct ieee80211_hw *hw, u16 queue,
 			   const struct ieee80211_tx_queue_params *params)
diff --git a/drivers/net/wireless/iwlwifi/iwl-led.c b/drivers/net/wireless/iwlwifi/iwl-led.c
index 7cce8f85bcc6..3d61cb43151c 100644
--- a/drivers/net/wireless/iwlwifi/iwl-led.c
+++ b/drivers/net/wireless/iwlwifi/iwl-led.c
@@ -335,7 +335,6 @@ void iwl_leds_background(struct iwl_priv *priv)
 	priv->last_blink_time = jiffies;
 	priv->last_blink_rate = blink_idx;
 }
-EXPORT_SYMBOL(iwl_leds_background);
 
 /* Register all led handler */
 int iwl_leds_register(struct iwl_priv *priv)
diff --git a/drivers/net/wireless/iwlwifi/iwl-rx.c b/drivers/net/wireless/iwlwifi/iwl-rx.c
index 5d5f2153f445..e002c8b56c49 100644
--- a/drivers/net/wireless/iwlwifi/iwl-rx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-rx.c
@@ -406,7 +406,6 @@ void iwl_rx_queue_reset(struct iwl_priv *priv, struct iwl_rx_queue *rxq)
 	rxq->free_count = 0;
 	spin_unlock_irqrestore(&rxq->lock, flags);
 }
-EXPORT_SYMBOL(iwl_rx_queue_reset);
 
 int iwl_rx_init(struct iwl_priv *priv, struct iwl_rx_queue *rxq)
 {
diff --git a/drivers/net/wireless/iwlwifi/iwl-sta.c b/drivers/net/wireless/iwlwifi/iwl-sta.c
index 79ea5cc2c89a..efcae0d5e193 100644
--- a/drivers/net/wireless/iwlwifi/iwl-sta.c
+++ b/drivers/net/wireless/iwlwifi/iwl-sta.c
@@ -464,7 +464,6 @@ out:
 	spin_unlock_irqrestore(&priv->sta_lock, flags);
 	return ret;
 }
-EXPORT_SYMBOL(iwl_remove_station);
 
 /**
  * iwl_clear_stations_table - Clear the driver's station table
-- 
cgit v1.2.3


From 97cad51e191919b43aabdc85b83241b66c3fcf2c Mon Sep 17 00:00:00 2001
From: "Luis R. Rodriguez" <lrodriguez@atheros.com>
Date: Thu, 30 Jul 2009 21:37:27 -0400
Subject: iwlwifi: remove usage of orig_flags

This is a private flag, internal to cfg80211. cfg80211
will set orig_* stuff internally upon wiphy registration,
drivers do not need to muck with it.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Acked-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-core.c | 3 ---
 1 file changed, 3 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 1b5180f8d75e..6797076bd45f 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -548,9 +548,6 @@ int iwlcore_init_geos(struct iwl_priv *priv)
 			geo_ch->flags |= IEEE80211_CHAN_DISABLED;
 		}
 
-		/* Save flags for reg domain usage */
-		geo_ch->orig_flags = geo_ch->flags;
-
 		IWL_DEBUG_INFO(priv, "Channel %d Freq=%d[%sGHz] %s flag=0x%X\n",
 				ch->channel, geo_ch->center_freq,
 				is_channel_a_band(ch) ?  "5.2" : "2.4",
-- 
cgit v1.2.3


From 8ce73f3abd064081706cc337c771378fc4431ef3 Mon Sep 17 00:00:00 2001
From: Daniel C Halperin <daniel.c.halperin@intel.com>
Date: Fri, 31 Jul 2009 14:28:06 -0700
Subject: iwlwifi: clear iwl_cmd_meta structure before use

Resolve an issue in which out-dated fields in iwl_cmd_meta
could be used for later hardware commands.

Signed-off-by: Daniel C Halperin <daniel.c.halperin@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-tx.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-tx.c b/drivers/net/wireless/iwlwifi/iwl-tx.c
index 6bb9602f3477..288b871e974b 100644
--- a/drivers/net/wireless/iwlwifi/iwl-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-tx.c
@@ -970,6 +970,7 @@ int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
 	out_cmd = txq->cmd[idx];
 	out_meta = &txq->meta[idx];
 
+	memset(out_meta, 0, sizeof(*out_meta));	/* re-initialize to NULL */
 	out_meta->flags = cmd->flags;
 	if (cmd->flags & CMD_WANT_SKB)
 		out_meta->source = cmd;
-- 
cgit v1.2.3


From 65b7998a9be418482493e9448bb83ff2914ed050 Mon Sep 17 00:00:00 2001
From: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Date: Fri, 31 Jul 2009 14:28:07 -0700
Subject: iwlwifi: Distinguish power amplifier for 6000 series

For 6x00 2x2 NIC, two types of Power Amplifier are available.
In order for uCode to apply correct tx power,
driver needs to program the CSR_GP_DRIVER_REG register and
let uCode know the type of PA.
If driver do not program CSR_GP_DRIVER_REG register (default to 0),
then it is uCode's decision for tx power

2x2 Hybrid card: use both internal and external PA
2x2 IPA(Internal Power Amplifier) card: internal PA only

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-1000.c | 14 ++++++++-
 drivers/net/wireless/iwlwifi/iwl-5000.c |  8 +-----
 drivers/net/wireless/iwlwifi/iwl-6000.c | 50 +++++++++++++++++++++++++++++++--
 drivers/net/wireless/iwlwifi/iwl-agn.c  |  8 ++++--
 drivers/net/wireless/iwlwifi/iwl-core.h |  3 ++
 drivers/net/wireless/iwlwifi/iwl-csr.h  | 10 ++++++-
 drivers/net/wireless/iwlwifi/iwl-dev.h  | 16 ++++++++++-
 7 files changed, 94 insertions(+), 15 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-1000.c b/drivers/net/wireless/iwlwifi/iwl-1000.c
index 5f7c52053c18..cf3fbc6b98ef 100644
--- a/drivers/net/wireless/iwlwifi/iwl-1000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-1000.c
@@ -73,6 +73,18 @@ static void iwl1000_set_ct_threshold(struct iwl_priv *priv)
 	priv->hw_params.ct_kill_exit_threshold = CT_KILL_EXIT_THRESHOLD;
 }
 
+/* NIC configuration for 1000 series */
+static void iwl1000_nic_config(struct iwl_priv *priv)
+{
+	iwl5000_nic_config(priv);
+
+	/* Setting digital SVR for 1000 card to 1.32V */
+	/* locking is acquired in iwl_set_bits_mask_prph() function */
+	iwl_set_bits_mask_prph(priv, APMG_DIGITAL_SVR_REG,
+				APMG_SVR_DIGITAL_VOLTAGE_1_32,
+				~APMG_SVR_VOLTAGE_CONFIG_BIT_MSK);
+}
+
 static struct iwl_lib_ops iwl1000_lib = {
 	.set_hw_params = iwl5000_hw_set_hw_params,
 	.txq_update_byte_cnt_tbl = iwl5000_txq_update_byte_cnt_tbl,
@@ -95,7 +107,7 @@ static struct iwl_lib_ops iwl1000_lib = {
 		.init =	iwl5000_apm_init,
 		.reset = iwl5000_apm_reset,
 		.stop = iwl5000_apm_stop,
-		.config = iwl5000_nic_config,
+		.config = iwl1000_nic_config,
 		.set_pwr_src = iwl_set_pwr_src,
 	},
 	.eeprom_ops = {
diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c
index ddd64fef3039..87957c052839 100644
--- a/drivers/net/wireless/iwlwifi/iwl-5000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-5000.c
@@ -198,6 +198,7 @@ out:
 }
 
 
+/* NIC configuration for 5000 series and up */
 void iwl5000_nic_config(struct iwl_priv *priv)
 {
 	unsigned long flags;
@@ -239,18 +240,11 @@ void iwl5000_nic_config(struct iwl_priv *priv)
 				APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS,
 				~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS);
 
-	if ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_1000) {
-		/* Setting digital SVR for 1000 card to 1.32V */
-		iwl_set_bits_mask_prph(priv, APMG_DIGITAL_SVR_REG,
-					APMG_SVR_DIGITAL_VOLTAGE_1_32,
-					~APMG_SVR_VOLTAGE_CONFIG_BIT_MSK);
-	}
 
 	spin_unlock_irqrestore(&priv->lock, flags);
 }
 
 
-
 /*
  * EEPROM
  */
diff --git a/drivers/net/wireless/iwlwifi/iwl-6000.c b/drivers/net/wireless/iwlwifi/iwl-6000.c
index 59ff73536f3a..052a704f2364 100644
--- a/drivers/net/wireless/iwlwifi/iwl-6000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-6000.c
@@ -68,6 +68,24 @@ static void iwl6000_set_ct_threshold(struct iwl_priv *priv)
 	priv->hw_params.ct_kill_exit_threshold = CT_KILL_EXIT_THRESHOLD;
 }
 
+/* NIC configuration for 6000 series */
+static void iwl6000_nic_config(struct iwl_priv *priv)
+{
+	iwl5000_nic_config(priv);
+
+	/* no locking required for register write */
+	if (priv->cfg->pa_type == IWL_PA_HYBRID) {
+		/* 2x2 hybrid phy type */
+		iwl_write32(priv, CSR_GP_DRIVER_REG,
+			     CSR_GP_DRIVER_REG_BIT_RADIO_SKU_2x2_HYB);
+	} else if (priv->cfg->pa_type == IWL_PA_INTERNAL) {
+		/* 2x2 IPA phy type */
+		iwl_write32(priv, CSR_GP_DRIVER_REG,
+			     CSR_GP_DRIVER_REG_BIT_RADIO_SKU_2x2_IPA);
+	}
+	/* else do nothing, uCode configured */
+}
+
 static struct iwl_lib_ops iwl6000_lib = {
 	.set_hw_params = iwl5000_hw_set_hw_params,
 	.txq_update_byte_cnt_tbl = iwl5000_txq_update_byte_cnt_tbl,
@@ -90,7 +108,7 @@ static struct iwl_lib_ops iwl6000_lib = {
 		.init =	iwl5000_apm_init,
 		.reset = iwl5000_apm_reset,
 		.stop = iwl5000_apm_stop,
-		.config = iwl5000_nic_config,
+		.config = iwl6000_nic_config,
 		.set_pwr_src = iwl_set_pwr_src,
 	},
 	.eeprom_ops = {
@@ -146,9 +164,13 @@ struct iwl_cfg iwl6000_2ag_cfg = {
 	.valid_tx_ant = ANT_BC,
 	.valid_rx_ant = ANT_BC,
 	.need_pll_cfg = false,
+	.pa_type = IWL_PA_SYSTEM,
 };
 
-struct iwl_cfg iwl6000_2agn_cfg = {
+/*
+ * "h": Hybrid configuration, use both internal and external Power Amplifier
+ */
+struct iwl_cfg iwl6000h_2agn_cfg = {
 	.name = "6000 Series 2x2 AGN",
 	.fw_name_pre = IWL6000_FW_PRE,
 	.ucode_api_max = IWL6000_UCODE_API_MAX,
@@ -162,6 +184,27 @@ struct iwl_cfg iwl6000_2agn_cfg = {
 	.valid_tx_ant = ANT_AB,
 	.valid_rx_ant = ANT_AB,
 	.need_pll_cfg = false,
+	.pa_type = IWL_PA_HYBRID,
+};
+
+/*
+ * "i": Internal configuration, use internal Power Amplifier
+ */
+struct iwl_cfg iwl6000i_2agn_cfg = {
+	.name = "6000 Series 2x2 AGN",
+	.fw_name_pre = IWL6000_FW_PRE,
+	.ucode_api_max = IWL6000_UCODE_API_MAX,
+	.ucode_api_min = IWL6000_UCODE_API_MIN,
+	.sku = IWL_SKU_A|IWL_SKU_G|IWL_SKU_N,
+	.ops = &iwl6000_ops,
+	.eeprom_size = IWL_5000_EEPROM_IMG_SIZE,
+	.eeprom_ver = EEPROM_5000_EEPROM_VERSION,
+	.eeprom_calib_ver = EEPROM_5000_TX_POWER_VERSION,
+	.mod_params = &iwl50_mod_params,
+	.valid_tx_ant = ANT_BC,
+	.valid_rx_ant = ANT_BC,
+	.need_pll_cfg = false,
+	.pa_type = IWL_PA_INTERNAL,
 };
 
 struct iwl_cfg iwl6050_2agn_cfg = {
@@ -178,6 +221,7 @@ struct iwl_cfg iwl6050_2agn_cfg = {
 	.valid_tx_ant = ANT_AB,
 	.valid_rx_ant = ANT_AB,
 	.need_pll_cfg = false,
+	.pa_type = IWL_PA_SYSTEM,
 };
 
 struct iwl_cfg iwl6000_3agn_cfg = {
@@ -194,6 +238,7 @@ struct iwl_cfg iwl6000_3agn_cfg = {
 	.valid_tx_ant = ANT_ABC,
 	.valid_rx_ant = ANT_ABC,
 	.need_pll_cfg = false,
+	.pa_type = IWL_PA_SYSTEM,
 };
 
 struct iwl_cfg iwl6050_3agn_cfg = {
@@ -210,6 +255,7 @@ struct iwl_cfg iwl6050_3agn_cfg = {
 	.valid_tx_ant = ANT_ABC,
 	.valid_rx_ant = ANT_ABC,
 	.need_pll_cfg = false,
+	.pa_type = IWL_PA_SYSTEM,
 };
 
 MODULE_FIRMWARE(IWL6000_MODULE_FIRMWARE(IWL6000_UCODE_API_MAX));
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index 4cb1a1b73483..a54330b24432 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -3142,11 +3142,13 @@ static struct pci_device_id iwl_hw_card_ids[] = {
 	{IWL_PCI_DEVICE(0x0082, 0x1102, iwl6000_2ag_cfg)},
 	{IWL_PCI_DEVICE(0x0085, 0x1112, iwl6000_2ag_cfg)},
 	{IWL_PCI_DEVICE(0x0082, 0x1122, iwl6000_2ag_cfg)},
+	{IWL_PCI_DEVICE(0x008D, PCI_ANY_ID, iwl6000h_2agn_cfg)},
+	{IWL_PCI_DEVICE(0x008E, PCI_ANY_ID, iwl6000h_2agn_cfg)},
 	{IWL_PCI_DEVICE(0x422B, PCI_ANY_ID, iwl6000_3agn_cfg)},
-	{IWL_PCI_DEVICE(0x422C, PCI_ANY_ID, iwl6000_2agn_cfg)},
+	{IWL_PCI_DEVICE(0x422C, PCI_ANY_ID, iwl6000i_2agn_cfg)},
 	{IWL_PCI_DEVICE(0x4238, PCI_ANY_ID, iwl6000_3agn_cfg)},
-	{IWL_PCI_DEVICE(0x4239, PCI_ANY_ID, iwl6000_2agn_cfg)},
-	{IWL_PCI_DEVICE(0x0082, PCI_ANY_ID, iwl6000_2agn_cfg)},
+	{IWL_PCI_DEVICE(0x4239, PCI_ANY_ID, iwl6000i_2agn_cfg)},
+	{IWL_PCI_DEVICE(0x0082, PCI_ANY_ID, iwl6000h_2agn_cfg)},
 	{IWL_PCI_DEVICE(0x0085, PCI_ANY_ID, iwl6000_3agn_cfg)},
 	{IWL_PCI_DEVICE(0x0086, PCI_ANY_ID, iwl6050_3agn_cfg)},
 	{IWL_PCI_DEVICE(0x0087, PCI_ANY_ID, iwl6050_2agn_cfg)},
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h
index febcf76e1d41..10ddcdda1041 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.h
+++ b/drivers/net/wireless/iwlwifi/iwl-core.h
@@ -206,6 +206,7 @@ struct iwl_mod_params {
  * 	filename is constructed as fw_name_pre<api>.ucode.
  * @ucode_api_max: Highest version of uCode API supported by driver.
  * @ucode_api_min: Lowest version of uCode API supported by driver.
+ * @pa_type: used by 6000 series only to identify the type of Power Amplifier
  *
  * We enable the driver to be backward compatible wrt API version. The
  * driver specifies which APIs it supports (with @ucode_api_max being the
@@ -226,6 +227,7 @@ struct iwl_mod_params {
  * iwl_hcmd_utils_ops etc. we accommodate different command structures
  * and flows between hardware versions (4965/5000) as well as their API
  * versions.
+ *
  */
 struct iwl_cfg {
 	const char *name;
@@ -242,6 +244,7 @@ struct iwl_cfg {
 	u8   valid_rx_ant;
 	bool need_pll_cfg;
 	bool use_isr_legacy;
+	enum iwl_pa_type pa_type;
 };
 
 /***************************
diff --git a/drivers/net/wireless/iwlwifi/iwl-csr.h b/drivers/net/wireless/iwlwifi/iwl-csr.h
index f03dae1b2f36..06437d13e73e 100644
--- a/drivers/net/wireless/iwlwifi/iwl-csr.h
+++ b/drivers/net/wireless/iwlwifi/iwl-csr.h
@@ -91,7 +91,8 @@
 #define CSR_EEPROM_GP           (CSR_BASE+0x030)
 #define CSR_OTP_GP_REG   	(CSR_BASE+0x034)
 #define CSR_GIO_REG		(CSR_BASE+0x03C)
-#define CSR_GP_UCODE		(CSR_BASE+0x044)
+#define CSR_GP_UCODE_REG	(CSR_BASE+0x048)
+#define CSR_GP_DRIVER_REG	(CSR_BASE+0x050)
 #define CSR_UCODE_DRV_GP1       (CSR_BASE+0x054)
 #define CSR_UCODE_DRV_GP1_SET   (CSR_BASE+0x058)
 #define CSR_UCODE_DRV_GP1_CLR   (CSR_BASE+0x05c)
@@ -245,6 +246,13 @@
 #define CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED           (0x00000004)
 #define CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT      (0x00000008)
 
+/* GP Driver */
+#define CSR_GP_DRIVER_REG_BIT_RADIO_SKU_MSK	    (0x00000003)
+#define CSR_GP_DRIVER_REG_BIT_RADIO_SKU_3x3_HYB	    (0x00000000)
+#define CSR_GP_DRIVER_REG_BIT_RADIO_SKU_2x2_HYB	    (0x00000001)
+#define CSR_GP_DRIVER_REG_BIT_RADIO_SKU_2x2_IPA	    (0x00000002)
+
+
 /* GI Chicken Bits */
 #define CSR_GIO_CHICKEN_BITS_REG_BIT_L1A_NO_L0S_RX  (0x00800000)
 #define CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER  (0x20000000)
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index 0ee3ad245697..335a8f34bc51 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -57,7 +57,8 @@ extern struct iwl_cfg iwl5100_bg_cfg;
 extern struct iwl_cfg iwl5100_abg_cfg;
 extern struct iwl_cfg iwl5150_agn_cfg;
 extern struct iwl_cfg iwl6000_2ag_cfg;
-extern struct iwl_cfg iwl6000_2agn_cfg;
+extern struct iwl_cfg iwl6000h_2agn_cfg;
+extern struct iwl_cfg iwl6000i_2agn_cfg;
 extern struct iwl_cfg iwl6000_3agn_cfg;
 extern struct iwl_cfg iwl6050_2agn_cfg;
 extern struct iwl_cfg iwl6050_3agn_cfg;
@@ -888,6 +889,19 @@ enum iwl_nvm_type {
 	NVM_DEVICE_TYPE_OTP,
 };
 
+
+/**
+ * enum iwl_pa_type - Power Amplifier type
+ * @IWL_PA_SYSTEM:  based on uCode configuration
+ * @IWL_PA_HYBRID: use both Internal and external PA
+ * @IWL_PA_INTERNAL: use Internal only
+ */
+enum iwl_pa_type {
+	IWL_PA_SYSTEM = 0,
+	IWL_PA_HYBRID = 1,
+	IWL_PA_INTERNAL = 2,
+};
+
 /* interrupt statistics */
 struct isr_statistics {
 	u32 hw;
-- 
cgit v1.2.3


From a11c4d000b84f7f49ebefc018c24bbfa3c9c0f3b Mon Sep 17 00:00:00 2001
From: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Date: Fri, 31 Jul 2009 14:28:08 -0700
Subject: iwlwifi: remove deprecated 6000 series adapters

Remove the support for deprecated devices. These devices are
engineering samples and no longer supported by the uCode.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-6000.c | 16 ----------------
 drivers/net/wireless/iwlwifi/iwl-agn.c  |  5 -----
 drivers/net/wireless/iwlwifi/iwl-dev.h  |  1 -
 3 files changed, 22 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-6000.c b/drivers/net/wireless/iwlwifi/iwl-6000.c
index 052a704f2364..4450943d3dac 100644
--- a/drivers/net/wireless/iwlwifi/iwl-6000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-6000.c
@@ -150,22 +150,6 @@ static struct iwl_ops iwl6000_ops = {
 	.utils = &iwl6000_hcmd_utils,
 };
 
-struct iwl_cfg iwl6000_2ag_cfg = {
-	.name = "6000 Series 2x2 AG",
-	.fw_name_pre = IWL6000_FW_PRE,
-	.ucode_api_max = IWL6000_UCODE_API_MAX,
-	.ucode_api_min = IWL6000_UCODE_API_MIN,
-	.sku = IWL_SKU_A|IWL_SKU_G,
-	.ops = &iwl6000_ops,
-	.eeprom_size = IWL_5000_EEPROM_IMG_SIZE,
-	.eeprom_ver = EEPROM_5000_EEPROM_VERSION,
-	.eeprom_calib_ver = EEPROM_5000_TX_POWER_VERSION,
-	.mod_params = &iwl50_mod_params,
-	.valid_tx_ant = ANT_BC,
-	.valid_rx_ant = ANT_BC,
-	.need_pll_cfg = false,
-	.pa_type = IWL_PA_SYSTEM,
-};
 
 /*
  * "h": Hybrid configuration, use both internal and external Power Amplifier
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index a54330b24432..467c8617cb7d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -3139,17 +3139,12 @@ static struct pci_device_id iwl_hw_card_ids[] = {
 	{IWL_PCI_DEVICE(0x423C, PCI_ANY_ID, iwl5150_agn_cfg)},
 	{IWL_PCI_DEVICE(0x423D, PCI_ANY_ID, iwl5150_agn_cfg)},
 /* 6000/6050 Series */
-	{IWL_PCI_DEVICE(0x0082, 0x1102, iwl6000_2ag_cfg)},
-	{IWL_PCI_DEVICE(0x0085, 0x1112, iwl6000_2ag_cfg)},
-	{IWL_PCI_DEVICE(0x0082, 0x1122, iwl6000_2ag_cfg)},
 	{IWL_PCI_DEVICE(0x008D, PCI_ANY_ID, iwl6000h_2agn_cfg)},
 	{IWL_PCI_DEVICE(0x008E, PCI_ANY_ID, iwl6000h_2agn_cfg)},
 	{IWL_PCI_DEVICE(0x422B, PCI_ANY_ID, iwl6000_3agn_cfg)},
 	{IWL_PCI_DEVICE(0x422C, PCI_ANY_ID, iwl6000i_2agn_cfg)},
 	{IWL_PCI_DEVICE(0x4238, PCI_ANY_ID, iwl6000_3agn_cfg)},
 	{IWL_PCI_DEVICE(0x4239, PCI_ANY_ID, iwl6000i_2agn_cfg)},
-	{IWL_PCI_DEVICE(0x0082, PCI_ANY_ID, iwl6000h_2agn_cfg)},
-	{IWL_PCI_DEVICE(0x0085, PCI_ANY_ID, iwl6000_3agn_cfg)},
 	{IWL_PCI_DEVICE(0x0086, PCI_ANY_ID, iwl6050_3agn_cfg)},
 	{IWL_PCI_DEVICE(0x0087, PCI_ANY_ID, iwl6050_2agn_cfg)},
 	{IWL_PCI_DEVICE(0x0088, PCI_ANY_ID, iwl6050_3agn_cfg)},
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index 335a8f34bc51..cab6255210d5 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -56,7 +56,6 @@ extern struct iwl_cfg iwl5350_agn_cfg;
 extern struct iwl_cfg iwl5100_bg_cfg;
 extern struct iwl_cfg iwl5100_abg_cfg;
 extern struct iwl_cfg iwl5150_agn_cfg;
-extern struct iwl_cfg iwl6000_2ag_cfg;
 extern struct iwl_cfg iwl6000h_2agn_cfg;
 extern struct iwl_cfg iwl6000i_2agn_cfg;
 extern struct iwl_cfg iwl6000_3agn_cfg;
-- 
cgit v1.2.3


From abdc2d62be335b85091e8f74081336563277a163 Mon Sep 17 00:00:00 2001
From: Jay Sternberg <jay.e.sternberg@intel.com>
Date: Fri, 31 Jul 2009 14:28:09 -0700
Subject: iwlwifi: remove duplicated version info from sysfs

version info in sysfs had been determined to be unnecessary as it
is already provided in syslog info.  nvm version is added to syslog
version info as a debug level message to provide all info that was
in the version sysfs data.

Signed-off-by: Jay Sternberg <jay.e.sternberg@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-agn.c | 40 +++++-----------------------------
 1 file changed, 6 insertions(+), 34 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index 467c8617cb7d..db580cbf5982 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -1291,6 +1291,7 @@ static int iwl_read_ucode(struct iwl_priv *priv)
 	size_t len;
 	u32 api_ver, build;
 	u32 inst_size, data_size, init_size, init_data_size, boot_size;
+	u16 eeprom_ver;
 
 	/* Ask kernel firmware_class module to get the boot firmware off disk.
 	 * request_firmware() is synchronous, file is in memory on return. */
@@ -1368,6 +1369,11 @@ static int iwl_read_ucode(struct iwl_priv *priv)
 	if (build)
 		IWL_DEBUG_INFO(priv, "Build %u\n", build);
 
+	eeprom_ver = iwl_eeprom_query16(priv, EEPROM_VERSION);
+	IWL_DEBUG_INFO(priv, "NVM Type: %s, version: 0x%x\n",
+		       (priv->nvm_device_type == NVM_DEVICE_TYPE_OTP)
+		       ? "OTP" : "EEPROM", eeprom_ver);
+
 	IWL_DEBUG_INFO(priv, "f/w package hdr ucode version raw = 0x%x\n",
 		       priv->ucode_ver);
 	IWL_DEBUG_INFO(priv, "f/w package hdr runtime inst size = %u\n",
@@ -2483,39 +2489,6 @@ static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO,
 #endif /* CONFIG_IWLWIFI_DEBUG */
 
 
-static ssize_t show_version(struct device *d,
-				struct device_attribute *attr, char *buf)
-{
-	struct iwl_priv *priv = dev_get_drvdata(d);
-	struct iwl_alive_resp *palive = &priv->card_alive;
-	ssize_t pos = 0;
-	u16 eeprom_ver;
-
-	if (palive->is_valid)
-		pos += sprintf(buf + pos,
-				"fw version: 0x%01X.0x%01X.0x%01X.0x%01X\n"
-				"fw type: 0x%01X 0x%01X\n",
-				palive->ucode_major, palive->ucode_minor,
-				palive->sw_rev[0], palive->sw_rev[1],
-				palive->ver_type, palive->ver_subtype);
-	else
-		pos += sprintf(buf + pos, "fw not loaded\n");
-
-	if (priv->eeprom) {
-		eeprom_ver = iwl_eeprom_query16(priv, EEPROM_VERSION);
-		pos += sprintf(buf + pos, "NVM Type: %s, version: 0x%x\n",
-			       (priv->nvm_device_type == NVM_DEVICE_TYPE_OTP)
-			       ? "OTP" : "EEPROM", eeprom_ver);
-
-	} else {
-		pos += sprintf(buf + pos, "EEPROM not initialzed\n");
-	}
-
-	return pos;
-}
-
-static DEVICE_ATTR(version, S_IWUSR | S_IRUGO, show_version, NULL);
-
 static ssize_t show_temperature(struct device *d,
 				struct device_attribute *attr, char *buf)
 {
@@ -2779,7 +2752,6 @@ static struct attribute *iwl_sysfs_entries[] = {
 #ifdef CONFIG_IWLWIFI_DEBUG
 	&dev_attr_debug_level.attr,
 #endif
-	&dev_attr_version.attr,
 	NULL
 };
 
-- 
cgit v1.2.3


From 3d816c77ecb05d3a3e974a205e53392e5353553e Mon Sep 17 00:00:00 2001
From: Reinette Chatre <reinette.chatre@intel.com>
Date: Fri, 7 Aug 2009 15:41:37 -0700
Subject: iwlwifi: re-introduce per device debugging

Commit "iwlwifi: make debug level more user friendly" cleaned up the
debug level handling. In doing so it created a single global debug
level for all devices. Some setups do consits of more that one iwlwifi
device and in these setups there is a requirement that debug levels
should be unique per device.

We now re-introduce the per device debugging while maintaining the
cleanup effort of the previous patch.

The maintain the global debug level and now introduce a per-device debug
level that will be used if it (the per-device debug level) is set. The
per-device debug level can be controlled via the debug_level sysfs file
while the global debug level is controlled by the debug module parameter.

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Acked-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-3945.c     |  4 ++--
 drivers/net/wireless/iwlwifi/iwl-4965.c     |  4 ++--
 drivers/net/wireless/iwlwifi/iwl-agn.c      | 22 +++++++++++-----------
 drivers/net/wireless/iwlwifi/iwl-core.c     |  8 ++++----
 drivers/net/wireless/iwlwifi/iwl-debug.h    | 11 ++++++-----
 drivers/net/wireless/iwlwifi/iwl-dev.h      | 21 +++++++++++++++++++++
 drivers/net/wireless/iwlwifi/iwl-rx.c       |  6 +++---
 drivers/net/wireless/iwlwifi/iwl-sta.c      |  2 +-
 drivers/net/wireless/iwlwifi/iwl-tx.c       |  4 ++--
 drivers/net/wireless/iwlwifi/iwl3945-base.c | 21 +++++++++++----------
 10 files changed, 63 insertions(+), 40 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c
index e1b0ef3c56a3..7ad020747252 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945.c
@@ -502,14 +502,14 @@ static void _iwl3945_dbg_report_frame(struct iwl_priv *priv,
 		}
 	}
 	if (print_dump)
-		iwl_print_hex_dump(IWL_DL_RX, data, length);
+		iwl_print_hex_dump(priv, IWL_DL_RX, data, length);
 }
 
 static void iwl3945_dbg_report_frame(struct iwl_priv *priv,
 		      struct iwl_rx_packet *pkt,
 		      struct ieee80211_hdr *header, int group100)
 {
-	if (iwl_debug_level & IWL_DL_RX)
+	if (iwl_get_debug_level(priv) & IWL_DL_RX)
 		_iwl3945_dbg_report_frame(priv, pkt, header, group100);
 }
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c
index 670214823cb9..62436a90ba89 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965.c
+++ b/drivers/net/wireless/iwlwifi/iwl-4965.c
@@ -46,7 +46,7 @@
 #include "iwl-sta.h"
 
 static int iwl4965_send_tx_power(struct iwl_priv *priv);
-static int iwl4965_hw_get_temperature(const struct iwl_priv *priv);
+static int iwl4965_hw_get_temperature(struct iwl_priv *priv);
 
 /* Highest firmware API version supported */
 #define IWL4965_UCODE_API_MAX 2
@@ -1680,7 +1680,7 @@ static s32 sign_extend(u32 oper, int index)
  *
  * A return of <0 indicates bogus data in the statistics
  */
-static int iwl4965_hw_get_temperature(const struct iwl_priv *priv)
+static int iwl4965_hw_get_temperature(struct iwl_priv *priv)
 {
 	s32 temperature;
 	s32 vt;
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index db580cbf5982..24c1ae6b8162 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -896,7 +896,7 @@ static void iwl_irq_tasklet_legacy(struct iwl_priv *priv)
 	iwl_write32(priv, CSR_FH_INT_STATUS, inta_fh);
 
 #ifdef CONFIG_IWLWIFI_DEBUG
-	if (iwl_debug_level & IWL_DL_ISR) {
+	if (iwl_get_debug_level(priv) & IWL_DL_ISR) {
 		/* just for debug */
 		inta_mask = iwl_read32(priv, CSR_INT_MASK);
 		IWL_DEBUG_ISR(priv, "inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
@@ -931,7 +931,7 @@ static void iwl_irq_tasklet_legacy(struct iwl_priv *priv)
 	}
 
 #ifdef CONFIG_IWLWIFI_DEBUG
-	if (iwl_debug_level & (IWL_DL_ISR)) {
+	if (iwl_get_debug_level(priv) & (IWL_DL_ISR)) {
 		/* NIC fires this, but we don't use it, redundant with WAKEUP */
 		if (inta & CSR_INT_BIT_SCD) {
 			IWL_DEBUG_ISR(priv, "Scheduler finished to transmit "
@@ -1045,7 +1045,7 @@ static void iwl_irq_tasklet_legacy(struct iwl_priv *priv)
 		iwl_enable_interrupts(priv);
 
 #ifdef CONFIG_IWLWIFI_DEBUG
-	if (iwl_debug_level & (IWL_DL_ISR)) {
+	if (iwl_get_debug_level(priv) & (IWL_DL_ISR)) {
 		inta = iwl_read32(priv, CSR_INT);
 		inta_mask = iwl_read32(priv, CSR_INT_MASK);
 		inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
@@ -1076,7 +1076,7 @@ static void iwl_irq_tasklet(struct iwl_priv *priv)
 	inta = priv->inta;
 
 #ifdef CONFIG_IWLWIFI_DEBUG
-	if (iwl_debug_level & IWL_DL_ISR) {
+	if (iwl_get_debug_level(priv) & IWL_DL_ISR) {
 		/* just for debug */
 		inta_mask = iwl_read32(priv, CSR_INT_MASK);
 		IWL_DEBUG_ISR(priv, "inta 0x%08x, enabled 0x%08x\n ",
@@ -1104,7 +1104,7 @@ static void iwl_irq_tasklet(struct iwl_priv *priv)
 	}
 
 #ifdef CONFIG_IWLWIFI_DEBUG
-	if (iwl_debug_level & (IWL_DL_ISR)) {
+	if (iwl_get_debug_level(priv) & (IWL_DL_ISR)) {
 		/* NIC fires this, but we don't use it, redundant with WAKEUP */
 		if (inta & CSR_INT_BIT_SCD) {
 			IWL_DEBUG_ISR(priv, "Scheduler finished to transmit "
@@ -2455,15 +2455,15 @@ static int iwl_mac_get_stats(struct ieee80211_hw *hw,
  *
  * See the level definitions in iwl for details.
  *
- * FIXME This file can be deprecated as the module parameter is
- * writable and users can thus also change the debug level
- * using the /sys/module/iwl3945/parameters/debug file.
+ * The debug_level being managed using sysfs below is a per device debug
+ * level that is used instead of the global debug level if it (the per
+ * device debug level) is set.
  */
-
 static ssize_t show_debug_level(struct device *d,
 				struct device_attribute *attr, char *buf)
 {
-	return sprintf(buf, "0x%08X\n", iwl_debug_level);
+	struct iwl_priv *priv = dev_get_drvdata(d);
+	return sprintf(buf, "0x%08X\n", iwl_get_debug_level(priv));
 }
 static ssize_t store_debug_level(struct device *d,
 				struct device_attribute *attr,
@@ -2477,7 +2477,7 @@ static ssize_t store_debug_level(struct device *d,
 	if (ret)
 		IWL_ERR(priv, "%s is not in hex or decimal form.\n", buf);
 	else
-		iwl_debug_level = val;
+		priv->debug_level = val;
 
 	return strnlen(buf, count);
 }
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 2ffbd27d01d2..30f1953208ee 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -1278,7 +1278,7 @@ static void iwl_print_rx_config_cmd(struct iwl_priv *priv)
 	struct iwl_rxon_cmd *rxon = &priv->staging_rxon;
 
 	IWL_DEBUG_RADIO(priv, "RX CONFIG:\n");
-	iwl_print_hex_dump(IWL_DL_RADIO, (u8 *) rxon, sizeof(*rxon));
+	iwl_print_hex_dump(priv, IWL_DL_RADIO, (u8 *) rxon, sizeof(*rxon));
 	IWL_DEBUG_RADIO(priv, "u16 channel: 0x%x\n", le16_to_cpu(rxon->channel));
 	IWL_DEBUG_RADIO(priv, "u32 flags: 0x%08X\n", le32_to_cpu(rxon->flags));
 	IWL_DEBUG_RADIO(priv, "u32 filter_flags: 0x%08x\n",
@@ -1508,7 +1508,7 @@ void iwl_irq_handle_error(struct iwl_priv *priv)
 	clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
 
 #ifdef CONFIG_IWLWIFI_DEBUG
-	if (iwl_debug_level & IWL_DL_FW_ERRORS) {
+	if (iwl_get_debug_level(priv) & IWL_DL_FW_ERRORS) {
 		iwl_dump_nic_error_log(priv);
 		iwl_dump_nic_event_log(priv);
 		iwl_print_rx_config_cmd(priv);
@@ -1985,7 +1985,7 @@ static irqreturn_t iwl_isr(int irq, void *data)
 	}
 
 #ifdef CONFIG_IWLWIFI_DEBUG
-	if (iwl_debug_level & (IWL_DL_ISR)) {
+	if (iwl_get_debug_level(priv) & (IWL_DL_ISR)) {
 		inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
 		IWL_DEBUG_ISR(priv, "ISR inta 0x%08x, enabled 0x%08x, "
 			      "fh 0x%08x\n", inta, inta_mask, inta_fh);
@@ -2310,7 +2310,7 @@ void iwl_rx_pm_debug_statistics_notif(struct iwl_priv *priv,
 	IWL_DEBUG_RADIO(priv, "Dumping %d bytes of unhandled "
 			"notification for %s:\n",
 			le32_to_cpu(pkt->len), get_cmd_string(pkt->hdr.cmd));
-	iwl_print_hex_dump(IWL_DL_RADIO, pkt->u.raw, le32_to_cpu(pkt->len));
+	iwl_print_hex_dump(priv, IWL_DL_RADIO, pkt->u.raw, le32_to_cpu(pkt->len));
 }
 EXPORT_SYMBOL(iwl_rx_pm_debug_statistics_notif);
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-debug.h b/drivers/net/wireless/iwlwifi/iwl-debug.h
index fbe177608bc7..09af046927ab 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debug.h
+++ b/drivers/net/wireless/iwlwifi/iwl-debug.h
@@ -46,7 +46,7 @@ do {									\
 #ifdef CONFIG_IWLWIFI_DEBUG
 #define IWL_DEBUG(__priv, level, fmt, args...)				\
 do {									\
-	if (iwl_debug_level & (level))					\
+	if (iwl_get_debug_level(__priv) & (level))					\
 		dev_printk(KERN_ERR, &(__priv->hw->wiphy->dev),		\
 			 "%c %s " fmt, in_interrupt() ? 'I' : 'U',	\
 			__func__ , ## args);				\
@@ -54,15 +54,15 @@ do {									\
 
 #define IWL_DEBUG_LIMIT(__priv, level, fmt, args...)			\
 do {									\
-	if ((iwl_debug_level & (level)) && net_ratelimit())		\
+	if ((iwl_get_debug_level(__priv) & (level)) && net_ratelimit())		\
 		dev_printk(KERN_ERR, &(__priv->hw->wiphy->dev),		\
 			"%c %s " fmt, in_interrupt() ? 'I' : 'U',	\
 			 __func__ , ## args);				\
 } while (0)
 
-#define iwl_print_hex_dump(level, p, len) 				\
+#define iwl_print_hex_dump(priv, level, p, len) 			\
 do {                                            			\
-	if (iwl_debug_level & level)          				\
+	if (iwl_get_debug_level(priv) & level) 				\
 		print_hex_dump(KERN_DEBUG, "iwl data: ",		\
 			       DUMP_PREFIX_OFFSET, 16, 1, p, len, 1);	\
 } while (0)
@@ -106,7 +106,8 @@ void iwl_dbgfs_unregister(struct iwl_priv *priv);
 #else
 #define IWL_DEBUG(__priv, level, fmt, args...)
 #define IWL_DEBUG_LIMIT(__priv, level, fmt, args...)
-static inline void iwl_print_hex_dump(int level, void *p, u32 len)
+static inline void iwl_print_hex_dump(struct iwl_priv *priv, int level,
+				      void *p, u32 len)
 {}
 #endif				/* CONFIG_IWLWIFI_DEBUG */
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index cab6255210d5..1bf3e4ccc5d9 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -1175,6 +1175,8 @@ struct iwl_priv {
 
 #ifdef CONFIG_IWLWIFI_DEBUG
 	/* debugging info */
+	u32 debug_level; /* per device debugging will override global
+			    iwl_debug_level if set */
 	u32 framecnt_to_us;
 	atomic_t restrict_refcnt;
 	bool disable_ht40;
@@ -1211,8 +1213,27 @@ static inline void iwl_txq_ctx_deactivate(struct iwl_priv *priv, int txq_id)
 
 #ifdef CONFIG_IWLWIFI_DEBUG
 const char *iwl_get_tx_fail_reason(u32 status);
+/*
+ * iwl_get_debug_level: Return active debug level for device
+ *
+ * Using sysfs it is possible to set per device debug level. This debug
+ * level will be used if set, otherwise the global debug level which can be
+ * set via module parameter is used.
+ */
+static inline u32 iwl_get_debug_level(struct iwl_priv *priv)
+{
+	if (priv->debug_level)
+		return priv->debug_level;
+	else
+		return iwl_debug_level;
+}
 #else
 static inline const char *iwl_get_tx_fail_reason(u32 status) { return ""; }
+
+static inline u32 iwl_get_debug_level(struct iwl_priv *priv)
+{
+	return iwl_debug_level;
+}
 #endif
 
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-rx.c b/drivers/net/wireless/iwlwifi/iwl-rx.c
index e002c8b56c49..98f014276e6d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-rx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-rx.c
@@ -645,7 +645,7 @@ static void iwl_dbg_report_frame(struct iwl_priv *priv,
 	u32 tsf_low;
 	int rssi;
 
-	if (likely(!(iwl_debug_level & IWL_DL_RX)))
+	if (likely(!(iwl_get_debug_level(priv) & IWL_DL_RX)))
 		return;
 
 	/* MAC header */
@@ -741,7 +741,7 @@ static void iwl_dbg_report_frame(struct iwl_priv *priv,
 		}
 	}
 	if (print_dump)
-		iwl_print_hex_dump(IWL_DL_RX, header, length);
+		iwl_print_hex_dump(priv, IWL_DL_RX, header, length);
 }
 #endif
 
@@ -1060,7 +1060,7 @@ void iwl_rx_reply_rx(struct iwl_priv *priv,
 
 	/* Set "1" to report good data frames in groups of 100 */
 #ifdef CONFIG_IWLWIFI_DEBUG
-	if (unlikely(iwl_debug_level & IWL_DL_RX))
+	if (unlikely(iwl_get_debug_level(priv) & IWL_DL_RX))
 		iwl_dbg_report_frame(priv, rx_start, len, header, 1);
 #endif
 	IWL_DEBUG_STATS_LIMIT(priv, "Rssi %d, noise %d, qual %d, TSF %llu\n",
diff --git a/drivers/net/wireless/iwlwifi/iwl-sta.c b/drivers/net/wireless/iwlwifi/iwl-sta.c
index efcae0d5e193..def12545d9a9 100644
--- a/drivers/net/wireless/iwlwifi/iwl-sta.c
+++ b/drivers/net/wireless/iwlwifi/iwl-sta.c
@@ -1088,7 +1088,7 @@ int iwl_get_sta_id(struct iwl_priv *priv, struct ieee80211_hdr *hdr)
 		IWL_DEBUG_DROP(priv, "Station %pM not in station map. "
 			       "Defaulting to broadcast...\n",
 			       hdr->addr1);
-		iwl_print_hex_dump(IWL_DL_DROP, (u8 *) hdr, sizeof(*hdr));
+		iwl_print_hex_dump(priv, IWL_DL_DROP, (u8 *) hdr, sizeof(*hdr));
 		return priv->hw_params.bcast_sta_id;
 
 	default:
diff --git a/drivers/net/wireless/iwlwifi/iwl-tx.c b/drivers/net/wireless/iwlwifi/iwl-tx.c
index 288b871e974b..0cac06c43f9a 100644
--- a/drivers/net/wireless/iwlwifi/iwl-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-tx.c
@@ -884,8 +884,8 @@ int iwl_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
 	IWL_DEBUG_TX(priv, "sequence nr = 0X%x \n",
 		     le16_to_cpu(out_cmd->hdr.sequence));
 	IWL_DEBUG_TX(priv, "tx_flags = 0X%x \n", le32_to_cpu(tx_cmd->tx_flags));
-	iwl_print_hex_dump(IWL_DL_TX, (u8 *)tx_cmd, sizeof(*tx_cmd));
-	iwl_print_hex_dump(IWL_DL_TX, (u8 *)tx_cmd->hdr, hdr_len);
+	iwl_print_hex_dump(priv, IWL_DL_TX, (u8 *)tx_cmd, sizeof(*tx_cmd));
+	iwl_print_hex_dump(priv, IWL_DL_TX, (u8 *)tx_cmd->hdr, hdr_len);
 
 	/* Set up entry for this TFD in Tx byte-count array */
 	if (info->flags & IEEE80211_TX_CTL_AMPDU)
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index ea051b739ba2..0babce250ea4 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -614,8 +614,8 @@ static int iwl3945_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
 	IWL_DEBUG_TX(priv, "sequence nr = 0X%x \n",
 		     le16_to_cpu(out_cmd->hdr.sequence));
 	IWL_DEBUG_TX(priv, "tx_flags = 0X%x \n", le32_to_cpu(tx->tx_flags));
-	iwl_print_hex_dump(IWL_DL_TX, tx, sizeof(*tx));
-	iwl_print_hex_dump(IWL_DL_TX, (u8 *)tx->hdr,
+	iwl_print_hex_dump(priv, IWL_DL_TX, tx, sizeof(*tx));
+	iwl_print_hex_dump(priv, IWL_DL_TX, (u8 *)tx->hdr,
 			   ieee80211_hdrlen(fc));
 
 	/*
@@ -1646,7 +1646,7 @@ static void iwl3945_irq_tasklet(struct iwl_priv *priv)
 	iwl_write32(priv, CSR_FH_INT_STATUS, inta_fh);
 
 #ifdef CONFIG_IWLWIFI_DEBUG
-	if (iwl_debug_level & IWL_DL_ISR) {
+	if (iwl_get_debug_level(priv) & IWL_DL_ISR) {
 		/* just for debug */
 		inta_mask = iwl_read32(priv, CSR_INT_MASK);
 		IWL_DEBUG_ISR(priv, "inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
@@ -1681,7 +1681,7 @@ static void iwl3945_irq_tasklet(struct iwl_priv *priv)
 	}
 
 #ifdef CONFIG_IWLWIFI_DEBUG
-	if (iwl_debug_level & (IWL_DL_ISR)) {
+	if (iwl_get_debug_level(priv) & (IWL_DL_ISR)) {
 		/* NIC fires this, but we don't use it, redundant with WAKEUP */
 		if (inta & CSR_INT_BIT_SCD) {
 			IWL_DEBUG_ISR(priv, "Scheduler finished to transmit "
@@ -1760,7 +1760,7 @@ static void iwl3945_irq_tasklet(struct iwl_priv *priv)
 		iwl_enable_interrupts(priv);
 
 #ifdef CONFIG_IWLWIFI_DEBUG
-	if (iwl_debug_level & (IWL_DL_ISR)) {
+	if (iwl_get_debug_level(priv) & (IWL_DL_ISR)) {
 		inta = iwl_read32(priv, CSR_INT);
 		inta_mask = iwl_read32(priv, CSR_INT_MASK);
 		inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
@@ -3311,14 +3311,15 @@ static int iwl3945_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
  *
  * See the level definitions in iwl for details.
  *
- * FIXME This file can be deprecated as the module parameter is
- * writable and users can thus also change the debug level
- * using the /sys/module/iwl3945/parameters/debug file.
+ * The debug_level being managed using sysfs below is a per device debug
+ * level that is used instead of the global debug level if it (the per
+ * device debug level) is set.
  */
 static ssize_t show_debug_level(struct device *d,
 				struct device_attribute *attr, char *buf)
 {
-	return sprintf(buf, "0x%08X\n", iwl_debug_level);
+	struct iwl_priv *priv = dev_get_drvdata(d);
+	return sprintf(buf, "0x%08X\n", iwl_get_debug_level(priv));
 }
 static ssize_t store_debug_level(struct device *d,
 				struct device_attribute *attr,
@@ -3332,7 +3333,7 @@ static ssize_t store_debug_level(struct device *d,
 	if (ret)
 		IWL_INFO(priv, "%s is not in hex or decimal form.\n", buf);
 	else
-		iwl_debug_level = val;
+		priv->debug_level = val;
 
 	return strnlen(buf, count);
 }
-- 
cgit v1.2.3


From 7aafef1c6e2e24f9a10dc2972bf0ee70624ccc47 Mon Sep 17 00:00:00 2001
From: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Date: Fri, 7 Aug 2009 15:41:38 -0700
Subject: iwlwifi: name changed from "fat" to "ht40"

Rename "fat" to "ht40"
The term "fat channel" is deprecated in favor of "HT40"

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-1000.c     |  4 +-
 drivers/net/wireless/iwlwifi/iwl-3945-hw.h  |  2 +-
 drivers/net/wireless/iwlwifi/iwl-3945.c     |  4 +-
 drivers/net/wireless/iwlwifi/iwl-4965-hw.h  |  6 +--
 drivers/net/wireless/iwlwifi/iwl-4965.c     | 42 +++++++++---------
 drivers/net/wireless/iwlwifi/iwl-5000.c     | 10 ++---
 drivers/net/wireless/iwlwifi/iwl-6000.c     |  4 +-
 drivers/net/wireless/iwlwifi/iwl-agn-rs.c   | 67 +++++++++++++++--------------
 drivers/net/wireless/iwlwifi/iwl-commands.h | 22 +++++-----
 drivers/net/wireless/iwlwifi/iwl-core.c     | 24 +++++------
 drivers/net/wireless/iwlwifi/iwl-core.h     |  2 +-
 drivers/net/wireless/iwlwifi/iwl-dev.h      | 22 +++++-----
 drivers/net/wireless/iwlwifi/iwl-eeprom.c   | 54 +++++++++++------------
 drivers/net/wireless/iwlwifi/iwl-eeprom.h   | 34 +++++++--------
 drivers/net/wireless/iwlwifi/iwl-power.c    |  2 +-
 drivers/net/wireless/iwlwifi/iwl-rx.c       |  4 +-
 drivers/net/wireless/iwlwifi/iwl-sta.c      |  6 +--
 17 files changed, 155 insertions(+), 154 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-1000.c b/drivers/net/wireless/iwlwifi/iwl-1000.c
index cf3fbc6b98ef..191718a0c545 100644
--- a/drivers/net/wireless/iwlwifi/iwl-1000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-1000.c
@@ -117,8 +117,8 @@ static struct iwl_lib_ops iwl1000_lib = {
 			EEPROM_5000_REG_BAND_3_CHANNELS,
 			EEPROM_5000_REG_BAND_4_CHANNELS,
 			EEPROM_5000_REG_BAND_5_CHANNELS,
-			EEPROM_5000_REG_BAND_24_FAT_CHANNELS,
-			EEPROM_5000_REG_BAND_52_FAT_CHANNELS
+			EEPROM_5000_REG_BAND_24_HT40_CHANNELS,
+			EEPROM_5000_REG_BAND_52_HT40_CHANNELS
 		},
 		.verify_signature  = iwlcore_eeprom_verify_signature,
 		.acquire_semaphore = iwlcore_eeprom_acquire_semaphore,
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945-hw.h b/drivers/net/wireless/iwlwifi/iwl-3945-hw.h
index b569c6f38e5c..16772780c5b0 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945-hw.h
+++ b/drivers/net/wireless/iwlwifi/iwl-3945-hw.h
@@ -176,7 +176,7 @@ struct iwl3945_eeprom {
  * in EEPROM containing EEPROM_CHANNEL_* usage flags (LSB) and max regulatory
  * txpower (MSB).
  *
- * Entries immediately below are for 20 MHz channel width.  FAT (40 MHz)
+ * Entries immediately below are for 20 MHz channel width.  HT40 (40 MHz)
  * channels (only for 4965, not supported by 3945) appear later in the EEPROM.
  *
  * 2.4 GHz channels 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c
index 7ad020747252..9e33507661d3 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945.c
@@ -2851,8 +2851,8 @@ static struct iwl_lib_ops iwl3945_lib = {
 			EEPROM_REGULATORY_BAND_3_CHANNELS,
 			EEPROM_REGULATORY_BAND_4_CHANNELS,
 			EEPROM_REGULATORY_BAND_5_CHANNELS,
-			EEPROM_REGULATORY_BAND_NO_FAT,
-			EEPROM_REGULATORY_BAND_NO_FAT,
+			EEPROM_REGULATORY_BAND_NO_HT40,
+			EEPROM_REGULATORY_BAND_NO_HT40,
 		},
 		.verify_signature  = iwlcore_eeprom_verify_signature,
 		.acquire_semaphore = iwl3945_eeprom_acquire_semaphore,
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965-hw.h b/drivers/net/wireless/iwlwifi/iwl-4965-hw.h
index a71a489096ff..b34322a32458 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965-hw.h
+++ b/drivers/net/wireless/iwlwifi/iwl-4965-hw.h
@@ -188,7 +188,7 @@ static inline int iwl4965_hw_valid_rtc_data_addr(u32 addr)
  *
  * 1)  Regulatory information (max txpower and channel usage flags) is provided
  *     separately for each channel that can possibly supported by 4965.
- *     40 MHz wide (.11n fat) channels are listed separately from 20 MHz
+ *     40 MHz wide (.11n HT40) channels are listed separately from 20 MHz
  *     (legacy) channels.
  *
  *     See struct iwl4965_eeprom_channel for format, and struct iwl4965_eeprom
@@ -251,8 +251,8 @@ static inline int iwl4965_hw_valid_rtc_data_addr(u32 addr)
  *     no reduction (such as with regulatory txpower limits) is required.
  *
  *     Saturation and Backoff values apply equally to 20 Mhz (legacy) channel
- *     widths and 40 Mhz (.11n fat) channel widths; there is no separate
- *     factory measurement for fat channels.
+ *     widths and 40 Mhz (.11n HT40) channel widths; there is no separate
+ *     factory measurement for ht40 channels.
  *
  *     The result of this step is the final target txpower.  The rest of
  *     the steps figure out the proper settings for the device to achieve
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c
index 62436a90ba89..f02023eea41c 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965.c
+++ b/drivers/net/wireless/iwlwifi/iwl-4965.c
@@ -317,7 +317,7 @@ restart:
 	queue_work(priv->workqueue, &priv->restart);
 }
 
-static bool is_fat_channel(__le32 rxon_flags)
+static bool is_ht40_channel(__le32 rxon_flags)
 {
 	int chan_mod = le32_to_cpu(rxon_flags & RXON_FLG_CHANNEL_MODE_MSK)
 				    >> RXON_FLG_CHANNEL_MODE_POS;
@@ -806,7 +806,7 @@ static int iwl4965_hw_set_hw_params(struct iwl_priv *priv)
 	priv->hw_params.max_data_size = IWL49_RTC_DATA_SIZE;
 	priv->hw_params.max_inst_size = IWL49_RTC_INST_SIZE;
 	priv->hw_params.max_bsm_size = BSM_SRAM_SIZE;
-	priv->hw_params.fat_channel = BIT(IEEE80211_BAND_5GHZ);
+	priv->hw_params.ht40_channel = BIT(IEEE80211_BAND_5GHZ);
 
 	priv->hw_params.rx_wrt_ptr_reg = FH_RSCSR_CHNL0_WPTR;
 
@@ -1266,7 +1266,7 @@ static const struct gain_entry gain_table[2][108] = {
 };
 
 static int iwl4965_fill_txpower_tbl(struct iwl_priv *priv, u8 band, u16 channel,
-				    u8 is_fat, u8 ctrl_chan_high,
+				    u8 is_ht40, u8 ctrl_chan_high,
 				    struct iwl4965_tx_power_db *tx_power_tbl)
 {
 	u8 saturation_power;
@@ -1298,8 +1298,8 @@ static int iwl4965_fill_txpower_tbl(struct iwl_priv *priv, u8 band, u16 channel,
 	user_target_power = 2 * priv->tx_power_user_lmt;
 
 	/* Get current (RXON) channel, band, width */
-	IWL_DEBUG_TXPOWER(priv, "chan %d band %d is_fat %d\n", channel, band,
-			  is_fat);
+	IWL_DEBUG_TXPOWER(priv, "chan %d band %d is_ht40 %d\n", channel, band,
+			  is_ht40);
 
 	ch_info = iwl_get_channel_info(priv, priv->band, channel);
 
@@ -1318,7 +1318,7 @@ static int iwl4965_fill_txpower_tbl(struct iwl_priv *priv, u8 band, u16 channel,
 	IWL_DEBUG_TXPOWER(priv, "channel %d belongs to txatten group %d\n",
 			  channel, txatten_grp);
 
-	if (is_fat) {
+	if (is_ht40) {
 		if (ctrl_chan_high)
 			channel -= 2;
 		else
@@ -1342,8 +1342,8 @@ static int iwl4965_fill_txpower_tbl(struct iwl_priv *priv, u8 band, u16 channel,
 
 	/* regulatory txpower limits ... reg_limit values are in half-dBm,
 	 *   max_power_avg values are in dBm, convert * 2 */
-	if (is_fat)
-		reg_limit = ch_info->fat_max_power_avg * 2;
+	if (is_ht40)
+		reg_limit = ch_info->ht40_max_power_avg * 2;
 	else
 		reg_limit = ch_info->max_power_avg * 2;
 
@@ -1509,7 +1509,7 @@ static int iwl4965_fill_txpower_tbl(struct iwl_priv *priv, u8 band, u16 channel,
 /**
  * iwl4965_send_tx_power - Configure the TXPOWER level user limit
  *
- * Uses the active RXON for channel, band, and characteristics (fat, high)
+ * Uses the active RXON for channel, band, and characteristics (ht40, high)
  * The power limit is taken from priv->tx_power_user_lmt.
  */
 static int iwl4965_send_tx_power(struct iwl_priv *priv)
@@ -1517,7 +1517,7 @@ static int iwl4965_send_tx_power(struct iwl_priv *priv)
 	struct iwl4965_txpowertable_cmd cmd = { 0 };
 	int ret;
 	u8 band = 0;
-	bool is_fat = false;
+	bool is_ht40 = false;
 	u8 ctrl_chan_high = 0;
 
 	if (test_bit(STATUS_SCANNING, &priv->status)) {
@@ -1530,9 +1530,9 @@ static int iwl4965_send_tx_power(struct iwl_priv *priv)
 
 	band = priv->band == IEEE80211_BAND_2GHZ;
 
-	is_fat =  is_fat_channel(priv->active_rxon.flags);
+	is_ht40 =  is_ht40_channel(priv->active_rxon.flags);
 
-	if (is_fat &&
+	if (is_ht40 &&
 	    (priv->active_rxon.flags & RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK))
 		ctrl_chan_high = 1;
 
@@ -1541,7 +1541,7 @@ static int iwl4965_send_tx_power(struct iwl_priv *priv)
 
 	ret = iwl4965_fill_txpower_tbl(priv, band,
 				le16_to_cpu(priv->active_rxon.channel),
-				is_fat, ctrl_chan_high, &cmd.tx_power);
+				is_ht40, ctrl_chan_high, &cmd.tx_power);
 	if (ret)
 		goto out;
 
@@ -1595,7 +1595,7 @@ static int iwl4965_hw_channel_switch(struct iwl_priv *priv, u16 channel)
 {
 	int rc;
 	u8 band = 0;
-	bool is_fat = false;
+	bool is_ht40 = false;
 	u8 ctrl_chan_high = 0;
 	struct iwl4965_channel_switch_cmd cmd = { 0 };
 	const struct iwl_channel_info *ch_info;
@@ -1604,9 +1604,9 @@ static int iwl4965_hw_channel_switch(struct iwl_priv *priv, u16 channel)
 
 	ch_info = iwl_get_channel_info(priv, priv->band, channel);
 
-	is_fat = is_fat_channel(priv->staging_rxon.flags);
+	is_ht40 = is_ht40_channel(priv->staging_rxon.flags);
 
-	if (is_fat &&
+	if (is_ht40 &&
 	    (priv->active_rxon.flags & RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK))
 		ctrl_chan_high = 1;
 
@@ -1621,7 +1621,7 @@ static int iwl4965_hw_channel_switch(struct iwl_priv *priv, u16 channel)
 	else
 		cmd.expect_beacon = 1;
 
-	rc = iwl4965_fill_txpower_tbl(priv, band, channel, is_fat,
+	rc = iwl4965_fill_txpower_tbl(priv, band, channel, is_ht40,
 				      ctrl_chan_high, &cmd.tx_power);
 	if (rc) {
 		IWL_DEBUG_11H(priv, "error:%d  fill txpower_tbl\n", rc);
@@ -1688,8 +1688,8 @@ static int iwl4965_hw_get_temperature(struct iwl_priv *priv)
 	u32 R4;
 
 	if (test_bit(STATUS_TEMPERATURE, &priv->status) &&
-		(priv->statistics.flag & STATISTICS_REPLY_FLG_FAT_MODE_MSK)) {
-		IWL_DEBUG_TEMP(priv, "Running FAT temperature calibration\n");
+		(priv->statistics.flag & STATISTICS_REPLY_FLG_HT40_MODE_MSK)) {
+		IWL_DEBUG_TEMP(priv, "Running HT40 temperature calibration\n");
 		R1 = (s32)le32_to_cpu(priv->card_alive_init.therm_r1[1]);
 		R2 = (s32)le32_to_cpu(priv->card_alive_init.therm_r2[1]);
 		R3 = (s32)le32_to_cpu(priv->card_alive_init.therm_r3[1]);
@@ -2330,8 +2330,8 @@ static struct iwl_lib_ops iwl4965_lib = {
 			EEPROM_REGULATORY_BAND_3_CHANNELS,
 			EEPROM_REGULATORY_BAND_4_CHANNELS,
 			EEPROM_REGULATORY_BAND_5_CHANNELS,
-			EEPROM_4965_REGULATORY_BAND_24_FAT_CHANNELS,
-			EEPROM_4965_REGULATORY_BAND_52_FAT_CHANNELS
+			EEPROM_4965_REGULATORY_BAND_24_HT40_CHANNELS,
+			EEPROM_4965_REGULATORY_BAND_52_HT40_CHANNELS
 		},
 		.verify_signature  = iwlcore_eeprom_verify_signature,
 		.acquire_semaphore = iwlcore_eeprom_acquire_semaphore,
diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c
index 87957c052839..755c184b3ecb 100644
--- a/drivers/net/wireless/iwlwifi/iwl-5000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-5000.c
@@ -845,7 +845,7 @@ int iwl5000_hw_set_hw_params(struct iwl_priv *priv)
 	}
 
 	priv->hw_params.max_bsm_size = 0;
-	priv->hw_params.fat_channel =  BIT(IEEE80211_BAND_2GHZ) |
+	priv->hw_params.ht40_channel =  BIT(IEEE80211_BAND_2GHZ) |
 					BIT(IEEE80211_BAND_5GHZ);
 	priv->hw_params.rx_wrt_ptr_reg = FH_RSCSR_CHNL0_WPTR;
 
@@ -1547,8 +1547,8 @@ struct iwl_lib_ops iwl5000_lib = {
 			EEPROM_5000_REG_BAND_3_CHANNELS,
 			EEPROM_5000_REG_BAND_4_CHANNELS,
 			EEPROM_5000_REG_BAND_5_CHANNELS,
-			EEPROM_5000_REG_BAND_24_FAT_CHANNELS,
-			EEPROM_5000_REG_BAND_52_FAT_CHANNELS
+			EEPROM_5000_REG_BAND_24_HT40_CHANNELS,
+			EEPROM_5000_REG_BAND_52_HT40_CHANNELS
 		},
 		.verify_signature  = iwlcore_eeprom_verify_signature,
 		.acquire_semaphore = iwlcore_eeprom_acquire_semaphore,
@@ -1597,8 +1597,8 @@ static struct iwl_lib_ops iwl5150_lib = {
 			EEPROM_5000_REG_BAND_3_CHANNELS,
 			EEPROM_5000_REG_BAND_4_CHANNELS,
 			EEPROM_5000_REG_BAND_5_CHANNELS,
-			EEPROM_5000_REG_BAND_24_FAT_CHANNELS,
-			EEPROM_5000_REG_BAND_52_FAT_CHANNELS
+			EEPROM_5000_REG_BAND_24_HT40_CHANNELS,
+			EEPROM_5000_REG_BAND_52_HT40_CHANNELS
 		},
 		.verify_signature  = iwlcore_eeprom_verify_signature,
 		.acquire_semaphore = iwlcore_eeprom_acquire_semaphore,
diff --git a/drivers/net/wireless/iwlwifi/iwl-6000.c b/drivers/net/wireless/iwlwifi/iwl-6000.c
index 4450943d3dac..c3ec6c20cc94 100644
--- a/drivers/net/wireless/iwlwifi/iwl-6000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-6000.c
@@ -118,8 +118,8 @@ static struct iwl_lib_ops iwl6000_lib = {
 			EEPROM_5000_REG_BAND_3_CHANNELS,
 			EEPROM_5000_REG_BAND_4_CHANNELS,
 			EEPROM_5000_REG_BAND_5_CHANNELS,
-			EEPROM_5000_REG_BAND_24_FAT_CHANNELS,
-			EEPROM_5000_REG_BAND_52_FAT_CHANNELS
+			EEPROM_5000_REG_BAND_24_HT40_CHANNELS,
+			EEPROM_5000_REG_BAND_52_HT40_CHANNELS
 		},
 		.verify_signature  = iwlcore_eeprom_verify_signature,
 		.acquire_semaphore = iwlcore_eeprom_acquire_semaphore,
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
index 52a4810274e9..0c3ed23ed775 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
@@ -97,7 +97,7 @@ struct iwl_scale_tbl_info {
 	enum iwl_table_type lq_type;
 	u8 ant_type;
 	u8 is_SGI;	/* 1 = short guard interval */
-	u8 is_fat;	/* 1 = 40 MHz channel width */
+	u8 is_ht40;	/* 1 = 40 MHz channel width */
 	u8 is_dup;	/* 1 = duplicated data streams */
 	u8 action;	/* change modulation; IWL_[LEGACY/SISO/MIMO]_SWITCH_* */
 	u8 max_search;	/* maximun number of tables we can search */
@@ -539,11 +539,11 @@ static u32 rate_n_flags_from_tbl(struct iwl_priv *priv,
 						     RATE_MCS_ANT_ABC_MSK);
 
 	if (is_Ht(tbl->lq_type)) {
-		if (tbl->is_fat) {
+		if (tbl->is_ht40) {
 			if (tbl->is_dup)
 				rate_n_flags |= RATE_MCS_DUP_MSK;
 			else
-				rate_n_flags |= RATE_MCS_FAT_MSK;
+				rate_n_flags |= RATE_MCS_HT40_MSK;
 		}
 		if (tbl->is_SGI)
 			rate_n_flags |= RATE_MCS_SGI_MSK;
@@ -579,7 +579,7 @@ static int rs_get_tbl_info_from_mcs(const u32 rate_n_flags,
 		return -EINVAL;
 	}
 	tbl->is_SGI = 0;	/* default legacy setup */
-	tbl->is_fat = 0;
+	tbl->is_ht40 = 0;
 	tbl->is_dup = 0;
 	tbl->ant_type = (ant_msk >> RATE_MCS_ANT_POS);
 	tbl->lq_type = LQ_NONE;
@@ -598,9 +598,9 @@ static int rs_get_tbl_info_from_mcs(const u32 rate_n_flags,
 		if (rate_n_flags & RATE_MCS_SGI_MSK)
 			tbl->is_SGI = 1;
 
-		if ((rate_n_flags & RATE_MCS_FAT_MSK) ||
+		if ((rate_n_flags & RATE_MCS_HT40_MSK) ||
 		    (rate_n_flags & RATE_MCS_DUP_MSK))
-			tbl->is_fat = 1;
+			tbl->is_ht40 = 1;
 
 		if (rate_n_flags & RATE_MCS_DUP_MSK)
 			tbl->is_dup = 1;
@@ -776,7 +776,7 @@ static u32 rs_get_lower_rate(struct iwl_lq_sta *lq_sta,
 		if (num_of_ant(tbl->ant_type) > 1)
 			tbl->ant_type = ANT_A;/*FIXME:RS*/
 
-		tbl->is_fat = 0;
+		tbl->is_ht40 = 0;
 		tbl->is_SGI = 0;
 		tbl->max_search = IWL_MAX_SEARCH;
 	}
@@ -880,7 +880,7 @@ static void rs_tx_status(void *priv_r, struct ieee80211_supported_band *sband,
 
 	if ((info->status.rates[0].idx < 0) ||
 	    (tbl_type.is_SGI != !!(info->status.rates[0].flags & IEEE80211_TX_RC_SHORT_GI)) ||
-	    (tbl_type.is_fat != !!(info->status.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)) ||
+	    (tbl_type.is_ht40 != !!(info->status.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)) ||
 	    (tbl_type.is_dup != !!(info->status.rates[0].flags & IEEE80211_TX_RC_DUP_DATA)) ||
 	    (tbl_type.ant_type != info->antenna_sel_tx) ||
 	    (!!(tx_rate & RATE_MCS_HT_MSK) != !!(info->status.rates[0].flags & IEEE80211_TX_RC_MCS)) ||
@@ -1049,7 +1049,7 @@ static void rs_set_expected_tpt_table(struct iwl_lq_sta *lq_sta,
 		else
 			tbl->expected_tpt = expected_tpt_A;
 	} else if (is_siso(tbl->lq_type)) {
-		if (tbl->is_fat && !lq_sta->is_dup)
+		if (tbl->is_ht40 && !lq_sta->is_dup)
 			if (tbl->is_SGI)
 				tbl->expected_tpt = expected_tpt_siso40MHzSGI;
 			else
@@ -1059,7 +1059,7 @@ static void rs_set_expected_tpt_table(struct iwl_lq_sta *lq_sta,
 		else
 			tbl->expected_tpt = expected_tpt_siso20MHz;
 	} else if (is_mimo2(tbl->lq_type)) {
-		if (tbl->is_fat && !lq_sta->is_dup)
+		if (tbl->is_ht40 && !lq_sta->is_dup)
 			if (tbl->is_SGI)
 				tbl->expected_tpt = expected_tpt_mimo2_40MHzSGI;
 			else
@@ -1069,7 +1069,7 @@ static void rs_set_expected_tpt_table(struct iwl_lq_sta *lq_sta,
 		else
 			tbl->expected_tpt = expected_tpt_mimo2_20MHz;
 	} else if (is_mimo3(tbl->lq_type)) {
-		if (tbl->is_fat && !lq_sta->is_dup)
+		if (tbl->is_ht40 && !lq_sta->is_dup)
 			if (tbl->is_SGI)
 				tbl->expected_tpt = expected_tpt_mimo3_40MHzSGI;
 			else
@@ -1217,13 +1217,13 @@ static int rs_switch_to_mimo2(struct iwl_priv *priv,
 	tbl->max_search = IWL_MAX_SEARCH;
 	rate_mask = lq_sta->active_mimo2_rate;
 
-	if (iwl_is_fat_tx_allowed(priv, &sta->ht_cap))
-		tbl->is_fat = 1;
+	if (iwl_is_ht40_tx_allowed(priv, &sta->ht_cap))
+		tbl->is_ht40 = 1;
 	else
-		tbl->is_fat = 0;
+		tbl->is_ht40 = 0;
 
 	/* FIXME: - don't toggle SGI here
-	if (tbl->is_fat) {
+	if (tbl->is_ht40) {
 		if (priv->current_ht_config.sgf & HT_SHORT_GI_40MHZ_ONLY)
 			tbl->is_SGI = 1;
 		else
@@ -1283,13 +1283,13 @@ static int rs_switch_to_mimo3(struct iwl_priv *priv,
 	tbl->max_search = IWL_MAX_11N_MIMO3_SEARCH;
 	rate_mask = lq_sta->active_mimo3_rate;
 
-	if (iwl_is_fat_tx_allowed(priv, &sta->ht_cap))
-		tbl->is_fat = 1;
+	if (iwl_is_ht40_tx_allowed(priv, &sta->ht_cap))
+		tbl->is_ht40 = 1;
 	else
-		tbl->is_fat = 0;
+		tbl->is_ht40 = 0;
 
 	/* FIXME: - don't toggle SGI here
-	if (tbl->is_fat) {
+	if (tbl->is_ht40) {
 		if (priv->current_ht_config.sgf & HT_SHORT_GI_40MHZ_ONLY)
 			tbl->is_SGI = 1;
 		else
@@ -1342,13 +1342,13 @@ static int rs_switch_to_siso(struct iwl_priv *priv,
 	tbl->max_search = IWL_MAX_SEARCH;
 	rate_mask = lq_sta->active_siso_rate;
 
-	if (iwl_is_fat_tx_allowed(priv, &sta->ht_cap))
-		tbl->is_fat = 1;
+	if (iwl_is_ht40_tx_allowed(priv, &sta->ht_cap))
+		tbl->is_ht40 = 1;
 	else
-		tbl->is_fat = 0;
+		tbl->is_ht40 = 0;
 
 	/* FIXME: - don't toggle SGI here
-	if (tbl->is_fat) {
+	if (tbl->is_ht40) {
 		if (priv->current_ht_config.sgf & HT_SHORT_GI_40MHZ_ONLY)
 			tbl->is_SGI = 1;
 		else
@@ -1586,11 +1586,11 @@ static int rs_move_siso_to_other(struct iwl_priv *priv,
 				goto out;
 			break;
 		case IWL_SISO_SWITCH_GI:
-			if (!tbl->is_fat &&
+			if (!tbl->is_ht40 &&
 				!(priv->current_ht_config.sgf &
 						HT_SHORT_GI_20MHZ))
 				break;
-			if (tbl->is_fat &&
+			if (tbl->is_ht40 &&
 				!(priv->current_ht_config.sgf &
 						HT_SHORT_GI_40MHZ))
 				break;
@@ -1726,11 +1726,11 @@ static int rs_move_mimo2_to_other(struct iwl_priv *priv,
 			break;
 
 		case IWL_MIMO2_SWITCH_GI:
-			if (!tbl->is_fat &&
+			if (!tbl->is_ht40 &&
 				!(priv->current_ht_config.sgf &
 						HT_SHORT_GI_20MHZ))
 				break;
-			if (tbl->is_fat &&
+			if (tbl->is_ht40 &&
 				!(priv->current_ht_config.sgf &
 						HT_SHORT_GI_40MHZ))
 				break;
@@ -1890,11 +1890,11 @@ static int rs_move_mimo3_to_other(struct iwl_priv *priv,
 			break;
 
 		case IWL_MIMO3_SWITCH_GI:
-			if (!tbl->is_fat &&
+			if (!tbl->is_ht40 &&
 				!(priv->current_ht_config.sgf &
 						HT_SHORT_GI_20MHZ))
 				break;
-			if (tbl->is_fat &&
+			if (tbl->is_ht40 &&
 				!(priv->current_ht_config.sgf &
 						HT_SHORT_GI_40MHZ))
 				break;
@@ -2576,7 +2576,7 @@ static void rs_get_rate(void *priv_r, struct ieee80211_sta *sta, void *priv_sta,
 			info->control.rates[0].flags |= IEEE80211_TX_RC_SHORT_GI;
 		if (lq_sta->last_rate_n_flags & RATE_MCS_DUP_MSK)
 			info->control.rates[0].flags |= IEEE80211_TX_RC_DUP_DATA;
-		if (lq_sta->last_rate_n_flags & RATE_MCS_FAT_MSK)
+		if (lq_sta->last_rate_n_flags & RATE_MCS_HT40_MSK)
 			info->control.rates[0].flags |= IEEE80211_TX_RC_40_MHZ_WIDTH;
 		if (lq_sta->last_rate_n_flags & RATE_MCS_GF_MSK)
 			info->control.rates[0].flags |= IEEE80211_TX_RC_GREEN_FIELD;
@@ -2963,7 +2963,7 @@ static ssize_t rs_sta_dbgfs_scale_table_read(struct file *file,
 		   (is_siso(tbl->lq_type)) ? "SISO" :
 		   ((is_mimo2(tbl->lq_type)) ? "MIMO2" : "MIMO3"));
 		   desc += sprintf(buff+desc, " %s",
-		   (tbl->is_fat) ? "40MHz" : "20MHz");
+		   (tbl->is_ht40) ? "40MHz" : "20MHz");
 		   desc += sprintf(buff+desc, " %s %s\n", (tbl->is_SGI) ? "SGI" : "",
 		   (lq_sta->is_green) ? "GF enabled" : "");
 	}
@@ -3028,12 +3028,13 @@ static ssize_t rs_sta_dbgfs_stats_table_read(struct file *file,
 		return -ENOMEM;
 
 	for (i = 0; i < LQ_SIZE; i++) {
-		desc += sprintf(buff+desc, "%s type=%d SGI=%d FAT=%d DUP=%d GF=%d\n"
+		desc += sprintf(buff+desc,
+				"%s type=%d SGI=%d HT40=%d DUP=%d GF=%d\n"
 				"rate=0x%X\n",
 				lq_sta->active_tbl == i ? "*" : "x",
 				lq_sta->lq_info[i].lq_type,
 				lq_sta->lq_info[i].is_SGI,
-				lq_sta->lq_info[i].is_fat,
+				lq_sta->lq_info[i].is_ht40,
 				lq_sta->lq_info[i].is_dup,
 				lq_sta->is_green,
 				lq_sta->lq_info[i].current_rate);
diff --git a/drivers/net/wireless/iwlwifi/iwl-commands.h b/drivers/net/wireless/iwlwifi/iwl-commands.h
index 39ede5727fe4..6188c54113b0 100644
--- a/drivers/net/wireless/iwlwifi/iwl-commands.h
+++ b/drivers/net/wireless/iwlwifi/iwl-commands.h
@@ -283,7 +283,7 @@ struct iwl3945_power_per_rate {
  *        1)  Dual stream (MIMO)
  *        2)  Triple stream (MIMO)
  *
- *    5:  Value of 0x20 in bits 7:0 indicates 6 Mbps FAT duplicate data
+ *    5:  Value of 0x20 in bits 7:0 indicates 6 Mbps HT40 duplicate data
  *
  * Legacy OFDM rate format for bits 7:0 (bit 8 must be "0", bit 9 "0"):
  *  3-0:  0xD)   6 Mbps
@@ -320,11 +320,11 @@ struct iwl3945_power_per_rate {
 #define RATE_MCS_GF_POS 10
 #define RATE_MCS_GF_MSK 0x400
 
-/* Bit 11: (1) Use 40Mhz FAT chnl width, (0) use 20 MHz legacy chnl width */
-#define RATE_MCS_FAT_POS 11
-#define RATE_MCS_FAT_MSK 0x800
+/* Bit 11: (1) Use 40Mhz HT40 chnl width, (0) use 20 MHz legacy chnl width */
+#define RATE_MCS_HT40_POS 11
+#define RATE_MCS_HT40_MSK 0x800
 
-/* Bit 12: (1) Duplicate data on both 20MHz chnls.  FAT (bit 11) must be set. */
+/* Bit 12: (1) Duplicate data on both 20MHz chnls. HT40 (bit 11) must be set. */
 #define RATE_MCS_DUP_POS 12
 #define RATE_MCS_DUP_MSK 0x1000
 
@@ -459,7 +459,7 @@ struct iwl_init_alive_resp {
 
 	/* calibration values from "initialize" uCode */
 	__le32 voltage;		/* signed, higher value is lower voltage */
-	__le32 therm_r1[2];	/* signed, 1st for normal, 2nd for FAT channel*/
+	__le32 therm_r1[2];	/* signed, 1st for normal, 2nd for HT40 */
 	__le32 therm_r2[2];	/* signed */
 	__le32 therm_r3[2];	/* signed */
 	__le32 therm_r4[2];	/* signed */
@@ -610,7 +610,7 @@ enum {
 #define RXON_FLG_HT_OPERATING_MODE_POS		(23)
 
 #define RXON_FLG_HT_PROT_MSK			cpu_to_le32(0x1 << 23)
-#define RXON_FLG_FAT_PROT_MSK			cpu_to_le32(0x2 << 23)
+#define RXON_FLG_HT40_PROT_MSK			cpu_to_le32(0x2 << 23)
 
 #define RXON_FLG_CHANNEL_MODE_POS		(25)
 #define RXON_FLG_CHANNEL_MODE_MSK		cpu_to_le32(0x3 << 25)
@@ -891,7 +891,7 @@ struct iwl_qosparam_cmd {
 #define STA_FLG_AGG_MPDU_8US_MSK	cpu_to_le32(1 << 18)
 #define STA_FLG_MAX_AGG_SIZE_POS	(19)
 #define STA_FLG_MAX_AGG_SIZE_MSK	cpu_to_le32(3 << 19)
-#define STA_FLG_FAT_EN_MSK		cpu_to_le32(1 << 21)
+#define STA_FLG_HT40_EN_MSK		cpu_to_le32(1 << 21)
 #define STA_FLG_MIMO_DIS_MSK		cpu_to_le32(1 << 22)
 #define STA_FLG_AGG_MPDU_DENSITY_POS	(23)
 #define STA_FLG_AGG_MPDU_DENSITY_MSK	cpu_to_le32(7 << 23)
@@ -1984,10 +1984,10 @@ struct iwl_link_qual_agg_params {
  *     a) Use this same initial rate for first 3 entries.
  *     b) Find next lower available rate using same mode (SISO or MIMO),
  *        use for next 3 entries.  If no lower rate available, switch to
- *        legacy mode (no FAT channel, no MIMO, no short guard interval).
+ *        legacy mode (no HT40 channel, no MIMO, no short guard interval).
  *     c) If using MIMO, set command's mimo_delimiter to number of entries
  *        using MIMO (3 or 6).
- *     d) After trying 2 HT rates, switch to legacy mode (no FAT channel,
+ *     d) After trying 2 HT rates, switch to legacy mode (no HT40 channel,
  *        no MIMO, no short guard interval), at the next lower bit rate
  *        (e.g. if second HT bit rate was 54, try 48 legacy), and follow
  *        legacy procedure for remaining table entries.
@@ -3017,7 +3017,7 @@ struct iwl_statistics_cmd {
  * one channel that has just been scanned.
  */
 #define STATISTICS_REPLY_FLG_BAND_24G_MSK         cpu_to_le32(0x2)
-#define STATISTICS_REPLY_FLG_FAT_MODE_MSK         cpu_to_le32(0x8)
+#define STATISTICS_REPLY_FLG_HT40_MODE_MSK        cpu_to_le32(0x8)
 
 struct iwl3945_notif_statistics {
 	__le32 flag;
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 30f1953208ee..5315d347a004 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -105,7 +105,7 @@ void iwl_hwrate_to_tx_control(struct iwl_priv *priv, u32 rate_n_flags,
 		r->flags |= IEEE80211_TX_RC_MCS;
 	if (rate_n_flags & RATE_MCS_GF_MSK)
 		r->flags |= IEEE80211_TX_RC_GREEN_FIELD;
-	if (rate_n_flags & RATE_MCS_FAT_MSK)
+	if (rate_n_flags & RATE_MCS_HT40_MSK)
 		r->flags |= IEEE80211_TX_RC_40_MHZ_WIDTH;
 	if (rate_n_flags & RATE_MCS_DUP_MSK)
 		r->flags |= IEEE80211_TX_RC_DUP_DATA;
@@ -400,7 +400,7 @@ static void iwlcore_init_ht_hw_capab(const struct iwl_priv *priv,
 			     (WLAN_HT_CAP_SM_PS_DISABLED << 2));
 
 	max_bit_rate = MAX_BIT_RATE_20_MHZ;
-	if (priv->hw_params.fat_channel & BIT(band)) {
+	if (priv->hw_params.ht40_channel & BIT(band)) {
 		ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
 		ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
 		ht_info->mcs.rx_mask[4] = 0x01;
@@ -540,7 +540,7 @@ int iwlcore_init_geos(struct iwl_priv *priv)
 			if (ch->flags & EEPROM_CHANNEL_RADAR)
 				geo_ch->flags |= IEEE80211_CHAN_RADAR;
 
-			geo_ch->flags |= ch->fat_extension_channel;
+			geo_ch->flags |= ch->ht40_extension_channel;
 
 			if (ch->max_power_avg > priv->tx_power_channel_lmt)
 				priv->tx_power_channel_lmt = ch->max_power_avg;
@@ -604,16 +604,16 @@ static u8 iwl_is_channel_extension(struct iwl_priv *priv,
 		return 0;
 
 	if (extension_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_ABOVE)
-		return !(ch_info->fat_extension_channel &
+		return !(ch_info->ht40_extension_channel &
 					IEEE80211_CHAN_NO_HT40PLUS);
 	else if (extension_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_BELOW)
-		return !(ch_info->fat_extension_channel &
+		return !(ch_info->ht40_extension_channel &
 					IEEE80211_CHAN_NO_HT40MINUS);
 
 	return 0;
 }
 
-u8 iwl_is_fat_tx_allowed(struct iwl_priv *priv,
+u8 iwl_is_ht40_tx_allowed(struct iwl_priv *priv,
 			 struct ieee80211_sta_ht_cap *sta_ht_inf)
 {
 	struct iwl_ht_info *iwl_ht_conf = &priv->current_ht_config;
@@ -637,7 +637,7 @@ u8 iwl_is_fat_tx_allowed(struct iwl_priv *priv,
 			le16_to_cpu(priv->staging_rxon.channel),
 			iwl_ht_conf->extension_chan_offset);
 }
-EXPORT_SYMBOL(iwl_is_fat_tx_allowed);
+EXPORT_SYMBOL(iwl_is_ht40_tx_allowed);
 
 static u16 iwl_adjust_beacon_interval(u16 beacon_val, u16 max_beacon_val)
 {
@@ -866,7 +866,7 @@ void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_info *ht_info)
 	if (!ht_info->is_ht) {
 		rxon->flags &= ~(RXON_FLG_CHANNEL_MODE_MSK |
 			RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK |
-			RXON_FLG_FAT_PROT_MSK |
+			RXON_FLG_HT40_PROT_MSK |
 			RXON_FLG_HT_PROT_MSK);
 		return;
 	}
@@ -877,12 +877,12 @@ void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_info *ht_info)
 	rxon->flags |= cpu_to_le32(ht_info->ht_protection << RXON_FLG_HT_OPERATING_MODE_POS);
 
 	/* Set up channel bandwidth:
-	 * 20 MHz only, 20/40 mixed or pure 40 if fat ok */
+	 * 20 MHz only, 20/40 mixed or pure 40 if ht40 ok */
 	/* clear the HT channel mode before set the mode */
 	rxon->flags &= ~(RXON_FLG_CHANNEL_MODE_MSK |
 			 RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK);
-	if (iwl_is_fat_tx_allowed(priv, NULL)) {
-		/* pure 40 fat */
+	if (iwl_is_ht40_tx_allowed(priv, NULL)) {
+		/* pure ht40 */
 		if (ht_info->ht_protection == IEEE80211_HT_OP_MODE_PROTECTION_20MHZ) {
 			rxon->flags |= RXON_FLG_CHANNEL_MODE_PURE_40;
 			/* Note: control channel is opposite of extension channel */
@@ -2428,7 +2428,7 @@ static void iwl_ht_conf(struct iwl_priv *priv,
 	else if (conf_is_ht40_plus(&priv->hw->conf))
 		iwl_conf->extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
 
-	/* If no above or below channel supplied disable FAT channel */
+	/* If no above or below channel supplied disable HT40 channel */
 	if (iwl_conf->extension_chan_offset != IEEE80211_HT_PARAM_CHA_SEC_ABOVE &&
 	    iwl_conf->extension_chan_offset != IEEE80211_HT_PARAM_CHA_SEC_BELOW)
 		iwl_conf->supported_chan_width = 0;
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h
index 10ddcdda1041..dd66148a7899 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.h
+++ b/drivers/net/wireless/iwlwifi/iwl-core.h
@@ -264,7 +264,7 @@ int iwl_full_rxon_required(struct iwl_priv *priv);
 void iwl_set_rxon_chain(struct iwl_priv *priv);
 int iwl_set_rxon_channel(struct iwl_priv *priv, struct ieee80211_channel *ch);
 void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_info *ht_info);
-u8 iwl_is_fat_tx_allowed(struct iwl_priv *priv,
+u8 iwl_is_ht40_tx_allowed(struct iwl_priv *priv,
 			 struct ieee80211_sta_ht_cap *sta_ht_inf);
 void iwl_set_flags_for_band(struct iwl_priv *priv, enum ieee80211_band band);
 void iwl_connection_init_rx_config(struct iwl_priv *priv, int mode);
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index 1bf3e4ccc5d9..624656a2bbaa 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -277,8 +277,8 @@ struct iwl_channel_info {
 	struct iwl4965_channel_tgd_info tgd;
 	struct iwl4965_channel_tgh_info tgh;
 	struct iwl_eeprom_channel eeprom;	/* EEPROM regulatory limit */
-	struct iwl_eeprom_channel fat_eeprom;	/* EEPROM regulatory limit for
-						 * FAT channel */
+	struct iwl_eeprom_channel ht40_eeprom;	/* EEPROM regulatory limit for
+						 * HT40 channel */
 
 	u8 channel;	  /* channel number */
 	u8 flags;	  /* flags copied from EEPROM */
@@ -291,13 +291,13 @@ struct iwl_channel_info {
 	u8 band_index;	  /* 0-4, maps channel to band1/2/3/4/5 */
 	enum ieee80211_band band;
 
-	/* FAT channel info */
-	s8 fat_max_power_avg;	/* (dBm) regul. eeprom, normal Tx, any rate */
-	s8 fat_curr_txpow;	/* (dBm) regulatory/spectrum/user (not h/w) */
-	s8 fat_min_power;	/* always 0 */
-	s8 fat_scan_power;	/* (dBm) eeprom, direct scans, any rate */
-	u8 fat_flags;		/* flags copied from EEPROM */
-	u8 fat_extension_channel; /* HT_IE_EXT_CHANNEL_* */
+	/* HT40 channel info */
+	s8 ht40_max_power_avg;	/* (dBm) regul. eeprom, normal Tx, any rate */
+	s8 ht40_curr_txpow;	/* (dBm) regulatory/spectrum/user (not h/w) */
+	s8 ht40_min_power;	/* always 0 */
+	s8 ht40_scan_power;	/* (dBm) eeprom, direct scans, any rate */
+	u8 ht40_flags;		/* flags copied from EEPROM */
+	u8 ht40_extension_channel; /* HT_IE_EXT_CHANNEL_* */
 
 	/* Radio/DSP gain settings for each "normal" data Tx rate.
 	 * These include, in addition to RF and DSP gain, a few fields for
@@ -649,7 +649,7 @@ struct iwl_sensitivity_ranges {
  * @rx_wrt_ptr_reg: FH{39}_RSCSR_CHNL0_WPTR
  * @max_stations:
  * @bcast_sta_id:
- * @fat_channel: is 40MHz width possible in band 2.4
+ * @ht40_channel: is 40MHz width possible in band 2.4
  * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ)
  * @sw_crypto: 0 for hw, 1 for sw
  * @max_xxx_size: for ucode uses
@@ -673,7 +673,7 @@ struct iwl_hw_params {
 	u32 max_pkt_size;
 	u8  max_stations;
 	u8  bcast_sta_id;
-	u8 fat_channel;
+	u8  ht40_channel;
 	u8  max_beacon_itrvl;	/* in 1024 ms */
 	u32 max_inst_size;
 	u32 max_data_size;
diff --git a/drivers/net/wireless/iwlwifi/iwl-eeprom.c b/drivers/net/wireless/iwlwifi/iwl-eeprom.c
index 51eed7226669..78c4a324a3b5 100644
--- a/drivers/net/wireless/iwlwifi/iwl-eeprom.c
+++ b/drivers/net/wireless/iwlwifi/iwl-eeprom.c
@@ -127,11 +127,11 @@ static const u8 iwl_eeprom_band_5[] = {	/* 5725-5825MHz */
 	145, 149, 153, 157, 161, 165
 };
 
-static const u8 iwl_eeprom_band_6[] = {       /* 2.4 FAT channel */
+static const u8 iwl_eeprom_band_6[] = {       /* 2.4 ht40 channel */
 	1, 2, 3, 4, 5, 6, 7
 };
 
-static const u8 iwl_eeprom_band_7[] = {       /* 5.2 FAT channel */
+static const u8 iwl_eeprom_band_7[] = {       /* 5.2 ht40 channel */
 	36, 44, 52, 60, 100, 108, 116, 124, 132, 149, 157
 };
 
@@ -462,13 +462,13 @@ static void iwl_init_band_reference(const struct iwl_priv *priv,
 				iwl_eeprom_query_addr(priv, offset);
 		*eeprom_ch_index = iwl_eeprom_band_5;
 		break;
-	case 6:		/* 2.4GHz FAT channels */
+	case 6:		/* 2.4GHz ht40 channels */
 		*eeprom_ch_count = ARRAY_SIZE(iwl_eeprom_band_6);
 		*eeprom_ch_info = (struct iwl_eeprom_channel *)
 				iwl_eeprom_query_addr(priv, offset);
 		*eeprom_ch_index = iwl_eeprom_band_6;
 		break;
-	case 7:		/* 5 GHz FAT channels */
+	case 7:		/* 5 GHz ht40 channels */
 		*eeprom_ch_count = ARRAY_SIZE(iwl_eeprom_band_7);
 		*eeprom_ch_info = (struct iwl_eeprom_channel *)
 				iwl_eeprom_query_addr(priv, offset);
@@ -484,14 +484,14 @@ static void iwl_init_band_reference(const struct iwl_priv *priv,
 			    ? # x " " : "")
 
 /**
- * iwl_set_fat_chan_info - Copy fat channel info into driver's priv.
+ * iwl_set_ht40_chan_info - Copy ht40 channel info into driver's priv.
  *
  * Does not set up a command, or touch hardware.
  */
-static int iwl_set_fat_chan_info(struct iwl_priv *priv,
+static int iwl_set_ht40_chan_info(struct iwl_priv *priv,
 			      enum ieee80211_band band, u16 channel,
 			      const struct iwl_eeprom_channel *eeprom_ch,
-			      u8 fat_extension_channel)
+			      u8 ht40_extension_channel)
 {
 	struct iwl_channel_info *ch_info;
 
@@ -501,7 +501,7 @@ static int iwl_set_fat_chan_info(struct iwl_priv *priv,
 	if (!is_channel_valid(ch_info))
 		return -1;
 
-	IWL_DEBUG_INFO(priv, "FAT Ch. %d [%sGHz] %s%s%s%s%s(0x%02x %ddBm):"
+	IWL_DEBUG_INFO(priv, "HT40 Ch. %d [%sGHz] %s%s%s%s%s(0x%02x %ddBm):"
 			" Ad-Hoc %ssupported\n",
 			ch_info->channel,
 			is_channel_a_band(ch_info) ?
@@ -517,13 +517,13 @@ static int iwl_set_fat_chan_info(struct iwl_priv *priv,
 			 && !(eeprom_ch->flags & EEPROM_CHANNEL_RADAR)) ?
 			"" : "not ");
 
-	ch_info->fat_eeprom = *eeprom_ch;
-	ch_info->fat_max_power_avg = eeprom_ch->max_power_avg;
-	ch_info->fat_curr_txpow = eeprom_ch->max_power_avg;
-	ch_info->fat_min_power = 0;
-	ch_info->fat_scan_power = eeprom_ch->max_power_avg;
-	ch_info->fat_flags = eeprom_ch->flags;
-	ch_info->fat_extension_channel = fat_extension_channel;
+	ch_info->ht40_eeprom = *eeprom_ch;
+	ch_info->ht40_max_power_avg = eeprom_ch->max_power_avg;
+	ch_info->ht40_curr_txpow = eeprom_ch->max_power_avg;
+	ch_info->ht40_min_power = 0;
+	ch_info->ht40_scan_power = eeprom_ch->max_power_avg;
+	ch_info->ht40_flags = eeprom_ch->flags;
+	ch_info->ht40_extension_channel = ht40_extension_channel;
 
 	return 0;
 }
@@ -589,9 +589,9 @@ int iwl_init_channel_map(struct iwl_priv *priv)
 			/* Copy the run-time flags so they are there even on
 			 * invalid channels */
 			ch_info->flags = eeprom_ch_info[ch].flags;
-			/* First write that fat is not enabled, and then enable
+			/* First write that ht40 is not enabled, and then enable
 			 * one by one */
-			ch_info->fat_extension_channel =
+			ch_info->ht40_extension_channel =
 				(IEEE80211_CHAN_NO_HT40PLUS |
 				 IEEE80211_CHAN_NO_HT40MINUS);
 
@@ -642,17 +642,17 @@ int iwl_init_channel_map(struct iwl_priv *priv)
 		}
 	}
 
-	/* Check if we do have FAT channels */
+	/* Check if we do have HT40 channels */
 	if (priv->cfg->ops->lib->eeprom_ops.regulatory_bands[5] ==
-	    EEPROM_REGULATORY_BAND_NO_FAT &&
+	    EEPROM_REGULATORY_BAND_NO_HT40 &&
 	    priv->cfg->ops->lib->eeprom_ops.regulatory_bands[6] ==
-	    EEPROM_REGULATORY_BAND_NO_FAT)
+	    EEPROM_REGULATORY_BAND_NO_HT40)
 		return 0;
 
-	/* Two additional EEPROM bands for 2.4 and 5 GHz FAT channels */
+	/* Two additional EEPROM bands for 2.4 and 5 GHz HT40 channels */
 	for (band = 6; band <= 7; band++) {
 		enum ieee80211_band ieeeband;
-		u8 fat_extension_chan;
+		u8 ht40_extension_chan;
 
 		iwl_init_band_reference(priv, band, &eeprom_ch_count,
 					&eeprom_ch_info, &eeprom_ch_index);
@@ -669,19 +669,19 @@ int iwl_init_channel_map(struct iwl_priv *priv)
 				 (eeprom_ch_index[ch] == 6) ||
 				 (eeprom_ch_index[ch] == 7)))
 				/* both are allowed: above and below */
-				fat_extension_chan = 0;
+				ht40_extension_chan = 0;
 			else
-				fat_extension_chan =
+				ht40_extension_chan =
 					IEEE80211_CHAN_NO_HT40MINUS;
 
 			/* Set up driver's info for lower half */
-			iwl_set_fat_chan_info(priv, ieeeband,
+			iwl_set_ht40_chan_info(priv, ieeeband,
 						eeprom_ch_index[ch],
 						&(eeprom_ch_info[ch]),
-						fat_extension_chan);
+						ht40_extension_chan);
 
 			/* Set up driver's info for upper half */
-			iwl_set_fat_chan_info(priv, ieeeband,
+			iwl_set_ht40_chan_info(priv, ieeeband,
 						(eeprom_ch_index[ch] + 4),
 						&(eeprom_ch_info[ch]),
 						IEEE80211_CHAN_NO_HT40PLUS);
diff --git a/drivers/net/wireless/iwlwifi/iwl-eeprom.h b/drivers/net/wireless/iwlwifi/iwl-eeprom.h
index 195b4ef12c27..05d4fc4451dc 100644
--- a/drivers/net/wireless/iwlwifi/iwl-eeprom.h
+++ b/drivers/net/wireless/iwlwifi/iwl-eeprom.h
@@ -88,10 +88,10 @@ struct iwl_priv;
  * requirement for establishing a new network for legal operation on channels
  * requiring RADAR detection or restricting ACTIVE scanning.
  *
- * NOTE:  "WIDE" flag does not indicate anything about "FAT" 40 MHz channels.
- *        It only indicates that 20 MHz channel use is supported; FAT channel
+ * NOTE:  "WIDE" flag does not indicate anything about "HT40" 40 MHz channels.
+ *        It only indicates that 20 MHz channel use is supported; HT40 channel
  *        usage is indicated by a separate set of regulatory flags for each
- *        FAT channel pair.
+ *        HT40 channel pair.
  *
  * NOTE:  Using a channel inappropriately will result in a uCode error!
  */
@@ -112,7 +112,7 @@ enum {
 #define EEPROM_SKU_CAP_HW_RF_KILL_ENABLE                (1 << 1)
 
 /* *regulatory* channel data format in eeprom, one for each channel.
- * There are separate entries for FAT (40 MHz) vs. normal (20 MHz) channels. */
+ * There are separate entries for HT40 (40 MHz) vs. normal (20 MHz) channels. */
 struct iwl_eeprom_channel {
 	u8 flags;		/* EEPROM_CHANNEL_* flags copied from EEPROM */
 	s8 max_power_avg;	/* max power (dBm) on this chnl, limit 31 */
@@ -170,9 +170,9 @@ struct iwl_eeprom_channel {
 		| INDIRECT_ADDRESS | INDIRECT_REGULATORY)   /* 22 bytes */
 #define EEPROM_5000_REG_BAND_5_CHANNELS       ((0x74)\
 		| INDIRECT_ADDRESS | INDIRECT_REGULATORY)   /* 12 bytes */
-#define EEPROM_5000_REG_BAND_24_FAT_CHANNELS  ((0x82)\
+#define EEPROM_5000_REG_BAND_24_HT40_CHANNELS  ((0x82)\
 		| INDIRECT_ADDRESS | INDIRECT_REGULATORY)   /* 14  bytes */
-#define EEPROM_5000_REG_BAND_52_FAT_CHANNELS  ((0x92)\
+#define EEPROM_5000_REG_BAND_52_HT40_CHANNELS  ((0x92)\
 		| INDIRECT_ADDRESS | INDIRECT_REGULATORY)   /* 22  bytes */
 
 /* 5050 Specific */
@@ -313,7 +313,7 @@ struct iwl_eeprom_calib_info {
  * in EEPROM containing EEPROM_CHANNEL_* usage flags (LSB) and max regulatory
  * txpower (MSB).
  *
- * Entries immediately below are for 20 MHz channel width.  FAT (40 MHz)
+ * Entries immediately below are for 20 MHz channel width.  HT40 (40 MHz)
  * channels (only for 4965, not supported by 3945) appear later in the EEPROM.
  *
  * 2.4 GHz channels 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
@@ -352,29 +352,29 @@ struct iwl_eeprom_calib_info {
 #define EEPROM_REGULATORY_BAND_5_CHANNELS   (2*0x99)	/* 12 bytes */
 
 /*
- * 2.4 GHz FAT channels 1 (5), 2 (6), 3 (7), 4 (8), 5 (9), 6 (10), 7 (11)
+ * 2.4 GHz HT40 channels 1 (5), 2 (6), 3 (7), 4 (8), 5 (9), 6 (10), 7 (11)
  *
  * The channel listed is the center of the lower 20 MHz half of the channel.
  * The overall center frequency is actually 2 channels (10 MHz) above that,
- * and the upper half of each FAT channel is centered 4 channels (20 MHz) away
- * from the lower half; e.g. the upper half of FAT channel 1 is channel 5,
- * and the overall FAT channel width centers on channel 3.
+ * and the upper half of each HT40 channel is centered 4 channels (20 MHz) away
+ * from the lower half; e.g. the upper half of HT40 channel 1 is channel 5,
+ * and the overall HT40 channel width centers on channel 3.
  *
  * NOTE:  The RXON command uses 20 MHz channel numbers to specify the
  *        control channel to which to tune.  RXON also specifies whether the
- *        control channel is the upper or lower half of a FAT channel.
+ *        control channel is the upper or lower half of a HT40 channel.
  *
- * NOTE:  4965 does not support FAT channels on 2.4 GHz.
+ * NOTE:  4965 does not support HT40 channels on 2.4 GHz.
  */
-#define EEPROM_4965_REGULATORY_BAND_24_FAT_CHANNELS (2*0xA0)	/* 14 bytes */
+#define EEPROM_4965_REGULATORY_BAND_24_HT40_CHANNELS (2*0xA0)	/* 14 bytes */
 
 /*
- * 5.2 GHz FAT channels 36 (40), 44 (48), 52 (56), 60 (64),
+ * 5.2 GHz HT40 channels 36 (40), 44 (48), 52 (56), 60 (64),
  * 100 (104), 108 (112), 116 (120), 124 (128), 132 (136), 149 (153), 157 (161)
  */
-#define EEPROM_4965_REGULATORY_BAND_52_FAT_CHANNELS (2*0xA8)	/* 22 bytes */
+#define EEPROM_4965_REGULATORY_BAND_52_HT40_CHANNELS (2*0xA8)	/* 22 bytes */
 
-#define EEPROM_REGULATORY_BAND_NO_FAT			(0)
+#define EEPROM_REGULATORY_BAND_NO_HT40			(0)
 
 struct iwl_eeprom_ops {
 	const u32 regulatory_bands[7];
diff --git a/drivers/net/wireless/iwlwifi/iwl-power.c b/drivers/net/wireless/iwlwifi/iwl-power.c
index 00937b3ee8ec..594b5c2540b5 100644
--- a/drivers/net/wireless/iwlwifi/iwl-power.c
+++ b/drivers/net/wireless/iwlwifi/iwl-power.c
@@ -583,7 +583,7 @@ static void iwl_advance_tt_handler(struct iwl_priv *priv, s32 temp)
 				/* disable HT */
 				rxon->flags &= ~(RXON_FLG_CHANNEL_MODE_MSK |
 					RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK |
-					RXON_FLG_FAT_PROT_MSK |
+					RXON_FLG_HT40_PROT_MSK |
 					RXON_FLG_HT_PROT_MSK);
 			else {
 				/* check HT capability and set
diff --git a/drivers/net/wireless/iwlwifi/iwl-rx.c b/drivers/net/wireless/iwlwifi/iwl-rx.c
index 98f014276e6d..9e63f9d149ed 100644
--- a/drivers/net/wireless/iwlwifi/iwl-rx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-rx.c
@@ -544,8 +544,8 @@ void iwl_rx_statistics(struct iwl_priv *priv,
 	change = ((priv->statistics.general.temperature !=
 		   pkt->u.stats.general.temperature) ||
 		  ((priv->statistics.flag &
-		    STATISTICS_REPLY_FLG_FAT_MODE_MSK) !=
-		   (pkt->u.stats.flag & STATISTICS_REPLY_FLG_FAT_MODE_MSK)));
+		    STATISTICS_REPLY_FLG_HT40_MODE_MSK) !=
+		   (pkt->u.stats.flag & STATISTICS_REPLY_FLG_HT40_MODE_MSK)));
 
 	memcpy(&priv->statistics, &pkt->u.stats, sizeof(priv->statistics));
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-sta.c b/drivers/net/wireless/iwlwifi/iwl-sta.c
index def12545d9a9..c6633fec8216 100644
--- a/drivers/net/wireless/iwlwifi/iwl-sta.c
+++ b/drivers/net/wireless/iwlwifi/iwl-sta.c
@@ -214,10 +214,10 @@ static void iwl_set_ht_add_station(struct iwl_priv *priv, u8 index,
 	sta_flags |= cpu_to_le32(
 	      (u32)sta_ht_inf->ampdu_density << STA_FLG_AGG_MPDU_DENSITY_POS);
 
-	if (iwl_is_fat_tx_allowed(priv, sta_ht_inf))
-		sta_flags |= STA_FLG_FAT_EN_MSK;
+	if (iwl_is_ht40_tx_allowed(priv, sta_ht_inf))
+		sta_flags |= STA_FLG_HT40_EN_MSK;
 	else
-		sta_flags &= ~STA_FLG_FAT_EN_MSK;
+		sta_flags &= ~STA_FLG_HT40_EN_MSK;
 
 	priv->stations[index].sta.station_flags = sta_flags;
  done:
-- 
cgit v1.2.3


From 20594eb0daa67f7a0cc19d74a1bafceb1bb09f4a Mon Sep 17 00:00:00 2001
From: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Date: Fri, 7 Aug 2009 15:41:39 -0700
Subject: iwlwifi: new debugging feature for dumping data traffic

The traffic buffer will only beallocated and used if either bit 23
(IWL_DX_TX) or bit 24 (IWL_DL_RX) of "debug" is set;
example: "debug=0x800000" - log tx data traffic
         "debug=0x1000000" - log rx data traffic
         "debug=0x1800000" - log both tx and rx traffic

The traffic log will store the beginning portion (64 bytes)  of the
latest 256 of tx and rx packets in the round-robbin buffer for
debugging,
user can examine the log through debugfs file.

How to display the current logged tx/rx traffic and txfifo and rxfifo
read/write point:
"cat traffic_log" in /sys/kernel/debug/ieee80211/phy0/iwlagn/debug
directory

By echo "0" to traffic_log file will empty the traffic log buffer and
reset both tx and rx taffic log index to 0.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-3945.c     |   1 +
 drivers/net/wireless/iwlwifi/iwl-agn.c      |  11 ++-
 drivers/net/wireless/iwlwifi/iwl-core.c     | 100 +++++++++++++++++++++++++++
 drivers/net/wireless/iwlwifi/iwl-core.h     |  28 ++++++++
 drivers/net/wireless/iwlwifi/iwl-debug.h    |   4 ++
 drivers/net/wireless/iwlwifi/iwl-debugfs.c  | 102 ++++++++++++++++++++++++++++
 drivers/net/wireless/iwlwifi/iwl-dev.h      |   6 ++
 drivers/net/wireless/iwlwifi/iwl-rx.c       |   1 +
 drivers/net/wireless/iwlwifi/iwl-tx.c       |   1 +
 drivers/net/wireless/iwlwifi/iwl3945-base.c |  13 +++-
 10 files changed, 262 insertions(+), 5 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c
index 9e33507661d3..bfd509f7af24 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945.c
@@ -679,6 +679,7 @@ static void iwl3945_rx_reply_rx(struct iwl_priv *priv,
 
 	/* Set "1" to report good data frames in groups of 100 */
 	iwl3945_dbg_report_frame(priv, pkt, header, 1);
+	iwl_dbg_log_rx_data_frame(priv, le16_to_cpu(rx_hdr->len), header);
 
 	if (network_packet) {
 		priv->last_beacon_time = le32_to_cpu(rx_end->beacon_timestamp);
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index 24c1ae6b8162..c9a1aacb2437 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -2476,9 +2476,12 @@ static ssize_t store_debug_level(struct device *d,
 	ret = strict_strtoul(buf, 0, &val);
 	if (ret)
 		IWL_ERR(priv, "%s is not in hex or decimal form.\n", buf);
-	else
+	else {
 		priv->debug_level = val;
-
+		if (iwl_alloc_traffic_mem(priv))
+			IWL_ERR(priv,
+				"Not enough memory to generate traffic log\n");
+	}
 	return strnlen(buf, count);
 }
 
@@ -2819,6 +2822,8 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 #ifdef CONFIG_IWLWIFI_DEBUG
 	atomic_set(&priv->restrict_refcnt, 0);
 #endif
+	if (iwl_alloc_traffic_mem(priv))
+		IWL_ERR(priv, "Not enough memory to generate traffic log\n");
 
 	/**************************
 	 * 2. Initializing PCI bus
@@ -3003,6 +3008,7 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	pci_disable_device(pdev);
  out_ieee80211_free_hw:
 	ieee80211_free_hw(priv->hw);
+	iwl_free_traffic_mem(priv);
  out:
 	return err;
 }
@@ -3061,6 +3067,7 @@ static void __devexit iwl_pci_remove(struct pci_dev *pdev)
 	 * until now... */
 	destroy_workqueue(priv->workqueue);
 	priv->workqueue = NULL;
+	iwl_free_traffic_mem(priv);
 
 	free_irq(priv->pci_dev->irq, priv);
 	pci_disable_msi(priv->pci_dev);
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 5315d347a004..1ae2ce3512c3 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -2953,6 +2953,106 @@ void iwl_mac_reset_tsf(struct ieee80211_hw *hw)
 }
 EXPORT_SYMBOL(iwl_mac_reset_tsf);
 
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+
+#define IWL_TRAFFIC_DUMP_SIZE	(IWL_TRAFFIC_ENTRY_SIZE * IWL_TRAFFIC_ENTRIES)
+
+void iwl_reset_traffic_log(struct iwl_priv *priv)
+{
+	priv->tx_traffic_idx = 0;
+	priv->rx_traffic_idx = 0;
+	if (priv->tx_traffic)
+		memset(priv->tx_traffic, 0, IWL_TRAFFIC_DUMP_SIZE);
+	if (priv->rx_traffic)
+		memset(priv->rx_traffic, 0, IWL_TRAFFIC_DUMP_SIZE);
+}
+
+int iwl_alloc_traffic_mem(struct iwl_priv *priv)
+{
+	u32 traffic_size = IWL_TRAFFIC_DUMP_SIZE;
+
+	if (iwl_debug_level & IWL_DL_TX) {
+		if (!priv->tx_traffic) {
+			priv->tx_traffic =
+				kzalloc(traffic_size, GFP_KERNEL);
+			if (!priv->tx_traffic)
+				return -ENOMEM;
+		}
+	}
+	if (iwl_debug_level & IWL_DL_RX) {
+		if (!priv->rx_traffic) {
+			priv->rx_traffic =
+				kzalloc(traffic_size, GFP_KERNEL);
+			if (!priv->rx_traffic)
+				return -ENOMEM;
+		}
+	}
+	iwl_reset_traffic_log(priv);
+	return 0;
+}
+EXPORT_SYMBOL(iwl_alloc_traffic_mem);
+
+void iwl_free_traffic_mem(struct iwl_priv *priv)
+{
+	kfree(priv->tx_traffic);
+	priv->tx_traffic = NULL;
+
+	kfree(priv->rx_traffic);
+	priv->rx_traffic = NULL;
+}
+EXPORT_SYMBOL(iwl_free_traffic_mem);
+
+void iwl_dbg_log_tx_data_frame(struct iwl_priv *priv,
+		      u16 length, struct ieee80211_hdr *header)
+{
+	__le16 fc;
+	u16 len;
+
+	if (likely(!(iwl_debug_level & IWL_DL_TX)))
+		return;
+
+	if (!priv->tx_traffic)
+		return;
+
+	fc = header->frame_control;
+	if (ieee80211_is_data(fc)) {
+		len = (length > IWL_TRAFFIC_ENTRY_SIZE)
+		       ? IWL_TRAFFIC_ENTRY_SIZE : length;
+		memcpy((priv->tx_traffic +
+		       (priv->tx_traffic_idx * IWL_TRAFFIC_ENTRY_SIZE)),
+		       header, len);
+		priv->tx_traffic_idx =
+			(priv->tx_traffic_idx + 1) % IWL_TRAFFIC_ENTRIES;
+	}
+}
+EXPORT_SYMBOL(iwl_dbg_log_tx_data_frame);
+
+void iwl_dbg_log_rx_data_frame(struct iwl_priv *priv,
+		      u16 length, struct ieee80211_hdr *header)
+{
+	__le16 fc;
+	u16 len;
+
+	if (likely(!(iwl_debug_level & IWL_DL_RX)))
+		return;
+
+	if (!priv->rx_traffic)
+		return;
+
+	fc = header->frame_control;
+	if (ieee80211_is_data(fc)) {
+		len = (length > IWL_TRAFFIC_ENTRY_SIZE)
+		       ? IWL_TRAFFIC_ENTRY_SIZE : length;
+		memcpy((priv->rx_traffic +
+		       (priv->rx_traffic_idx * IWL_TRAFFIC_ENTRY_SIZE)),
+		       header, len);
+		priv->rx_traffic_idx =
+			(priv->rx_traffic_idx + 1) % IWL_TRAFFIC_ENTRIES;
+	}
+}
+EXPORT_SYMBOL(iwl_dbg_log_rx_data_frame);
+#endif
+
 #ifdef CONFIG_PM
 
 int iwl_pci_suspend(struct pci_dev *pdev, pm_message_t state)
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h
index dd66148a7899..40a9167cacce 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.h
+++ b/drivers/net/wireless/iwlwifi/iwl-core.h
@@ -300,7 +300,35 @@ void iwl_config_ap(struct iwl_priv *priv);
 int iwl_mac_get_tx_stats(struct ieee80211_hw *hw,
 			 struct ieee80211_tx_queue_stats *stats);
 void iwl_mac_reset_tsf(struct ieee80211_hw *hw);
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+int iwl_alloc_traffic_mem(struct iwl_priv *priv);
+void iwl_free_traffic_mem(struct iwl_priv *priv);
+void iwl_reset_traffic_log(struct iwl_priv *priv);
+void iwl_dbg_log_tx_data_frame(struct iwl_priv *priv,
+				u16 length, struct ieee80211_hdr *header);
+void iwl_dbg_log_rx_data_frame(struct iwl_priv *priv,
+				u16 length, struct ieee80211_hdr *header);
 
+#else
+static inline int iwl_alloc_traffic_mem(struct iwl_priv *priv)
+{
+	return 0;
+}
+static inline void iwl_free_traffic_mem(struct iwl_priv *priv)
+{
+}
+static inline void iwl_reset_traffic_log(struct iwl_priv *priv)
+{
+}
+static inline void iwl_dbg_log_tx_data_frame(struct iwl_priv *priv,
+		      u16 length, struct ieee80211_hdr *header)
+{
+}
+static inline void iwl_dbg_log_rx_data_frame(struct iwl_priv *priv,
+		      u16 length, struct ieee80211_hdr *header)
+{
+}
+#endif
 /*****************************************************
  * RX handlers.
  * **************************************************/
diff --git a/drivers/net/wireless/iwlwifi/iwl-debug.h b/drivers/net/wireless/iwlwifi/iwl-debug.h
index 09af046927ab..335ff5c43966 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debug.h
+++ b/drivers/net/wireless/iwlwifi/iwl-debug.h
@@ -72,6 +72,7 @@ struct iwl_debugfs {
 	const char *name;
 	struct dentry *dir_drv;
 	struct dentry *dir_data;
+	struct dentry *dir_debug;
 	struct dentry *dir_rf;
 	struct dir_data_files {
 		struct dentry *file_sram;
@@ -95,6 +96,9 @@ struct iwl_debugfs {
 		struct dentry *file_disable_chain_noise;
 		struct dentry *file_disable_tx_power;
 	} dbgfs_rf_files;
+	struct dir_debug_files {
+		struct dentry *file_traffic_log;
+	} dbgfs_debug_files;
 	u32 sram_offset;
 	u32 sram_len;
 };
diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
index 6748a3fb9669..031538c42063 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
@@ -712,6 +712,104 @@ DEBUGFS_READ_FILE_OPS(led);
 DEBUGFS_READ_FILE_OPS(thermal_throttling);
 DEBUGFS_READ_WRITE_FILE_OPS(disable_ht40);
 
+static ssize_t iwl_dbgfs_traffic_log_read(struct file *file,
+					 char __user *user_buf,
+					 size_t count, loff_t *ppos)
+{
+	struct iwl_priv *priv = file->private_data;
+	int pos = 0, ofs = 0;
+	int cnt = 0, entry;
+	struct iwl_tx_queue *txq;
+	struct iwl_queue *q;
+	struct iwl_rx_queue *rxq = &priv->rxq;
+	char *buf;
+	int bufsz = ((IWL_TRAFFIC_ENTRIES * IWL_TRAFFIC_ENTRY_SIZE * 64) * 2) +
+		(IWL_MAX_NUM_QUEUES * 32 * 8) + 400;
+	const u8 *ptr;
+	ssize_t ret;
+
+	buf = kzalloc(bufsz, GFP_KERNEL);
+	if (!buf) {
+		IWL_ERR(priv, "Can not allocate buffer\n");
+		return -ENOMEM;
+	}
+	pos += scnprintf(buf + pos, bufsz - pos, "Tx Queue\n");
+	for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) {
+		txq = &priv->txq[cnt];
+		q = &txq->q;
+		pos += scnprintf(buf + pos, bufsz - pos,
+				"q[%d]: read_ptr: %u, write_ptr: %u\n",
+				cnt, q->read_ptr, q->write_ptr);
+	}
+	if (priv->tx_traffic && (iwl_debug_level & IWL_DL_TX)) {
+		ptr = priv->tx_traffic;
+		pos += scnprintf(buf + pos, bufsz - pos,
+				"Tx Traffic idx: %u\n",	priv->tx_traffic_idx);
+		for (cnt = 0, ofs = 0; cnt < IWL_TRAFFIC_ENTRIES; cnt++) {
+			for (entry = 0; entry < IWL_TRAFFIC_ENTRY_SIZE / 16;
+			     entry++,  ofs += 16) {
+				pos += scnprintf(buf + pos, bufsz - pos,
+						"0x%.4x ", ofs);
+				hex_dump_to_buffer(ptr + ofs, 16, 16, 2,
+						   buf + pos, bufsz - pos, 0);
+				pos += strlen(buf);
+				if (bufsz - pos > 0)
+					buf[pos++] = '\n';
+			}
+		}
+	}
+
+	pos += scnprintf(buf + pos, bufsz - pos, "Rx Queue\n");
+	pos += scnprintf(buf + pos, bufsz - pos,
+			"read: %u, write: %u\n",
+			 rxq->read, rxq->write);
+
+	if (priv->rx_traffic && (iwl_debug_level & IWL_DL_RX)) {
+		ptr = priv->rx_traffic;
+		pos += scnprintf(buf + pos, bufsz - pos,
+				"Rx Traffic idx: %u\n",	priv->rx_traffic_idx);
+		for (cnt = 0, ofs = 0; cnt < IWL_TRAFFIC_ENTRIES; cnt++) {
+			for (entry = 0; entry < IWL_TRAFFIC_ENTRY_SIZE / 16;
+			     entry++,  ofs += 16) {
+				pos += scnprintf(buf + pos, bufsz - pos,
+						"0x%.4x ", ofs);
+				hex_dump_to_buffer(ptr + ofs, 16, 16, 2,
+						   buf + pos, bufsz - pos, 0);
+				pos += strlen(buf);
+				if (bufsz - pos > 0)
+					buf[pos++] = '\n';
+			}
+		}
+	}
+
+	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+	kfree(buf);
+	return ret;
+}
+
+static ssize_t iwl_dbgfs_traffic_log_write(struct file *file,
+					 const char __user *user_buf,
+					 size_t count, loff_t *ppos)
+{
+	struct iwl_priv *priv = file->private_data;
+	char buf[8];
+	int buf_size;
+	int traffic_log;
+
+	memset(buf, 0, sizeof(buf));
+	buf_size = min(count, sizeof(buf) -  1);
+	if (copy_from_user(buf, user_buf, buf_size))
+		return -EFAULT;
+	if (sscanf(buf, "%d", &traffic_log) != 1)
+		return -EFAULT;
+	if (traffic_log == 0)
+		iwl_reset_traffic_log(priv);
+
+	return count;
+}
+
+DEBUGFS_READ_WRITE_FILE_OPS(traffic_log);
+
 /*
  * Create the debugfs files and directories
  *
@@ -738,6 +836,7 @@ int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
 
 	DEBUGFS_ADD_DIR(data, dbgfs->dir_drv);
 	DEBUGFS_ADD_DIR(rf, dbgfs->dir_drv);
+	DEBUGFS_ADD_DIR(debug, dbgfs->dir_drv);
 	DEBUGFS_ADD_FILE(nvm, data);
 	DEBUGFS_ADD_FILE(sram, data);
 	DEBUGFS_ADD_FILE(log_event, data);
@@ -753,6 +852,7 @@ int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
 #endif
 	DEBUGFS_ADD_FILE(thermal_throttling, data);
 	DEBUGFS_ADD_FILE(disable_ht40, data);
+	DEBUGFS_ADD_FILE(traffic_log, debug);
 	DEBUGFS_ADD_BOOL(disable_sensitivity, rf, &priv->disable_sens_cal);
 	DEBUGFS_ADD_BOOL(disable_chain_noise, rf,
 			 &priv->disable_chain_noise_cal);
@@ -794,6 +894,8 @@ void iwl_dbgfs_unregister(struct iwl_priv *priv)
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_thermal_throttling);
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_disable_ht40);
 	DEBUGFS_REMOVE(priv->dbgfs->dir_data);
+	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_traffic_log);
+	DEBUGFS_REMOVE(priv->dbgfs->dir_debug);
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_sensitivity);
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_chain_noise);
 	if (((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_4965) ||
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index 624656a2bbaa..899b75f28a23 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -877,6 +877,8 @@ struct iwl_chain_noise_data {
 #define	EEPROM_SEM_TIMEOUT 10		/* milliseconds */
 #define EEPROM_SEM_RETRY_LIMIT 1000	/* number of attempts (not time) */
 
+#define IWL_TRAFFIC_ENTRIES	(256)
+#define IWL_TRAFFIC_ENTRY_SIZE  (64)
 
 enum {
 	MEASUREMENT_READY = (1 << 0),
@@ -1182,6 +1184,10 @@ struct iwl_priv {
 	bool disable_ht40;
 #ifdef CONFIG_IWLWIFI_DEBUGFS
 	/* debugfs */
+	u16 tx_traffic_idx;
+	u16 rx_traffic_idx;
+	u8 *tx_traffic;
+	u8 *rx_traffic;
 	struct iwl_debugfs *dbgfs;
 #endif /* CONFIG_IWLWIFI_DEBUGFS */
 #endif /* CONFIG_IWLWIFI_DEBUG */
diff --git a/drivers/net/wireless/iwlwifi/iwl-rx.c b/drivers/net/wireless/iwlwifi/iwl-rx.c
index 9e63f9d149ed..55860037f98a 100644
--- a/drivers/net/wireless/iwlwifi/iwl-rx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-rx.c
@@ -1063,6 +1063,7 @@ void iwl_rx_reply_rx(struct iwl_priv *priv,
 	if (unlikely(iwl_get_debug_level(priv) & IWL_DL_RX))
 		iwl_dbg_report_frame(priv, rx_start, len, header, 1);
 #endif
+	iwl_dbg_log_rx_data_frame(priv, len, header);
 	IWL_DEBUG_STATS_LIMIT(priv, "Rssi %d, noise %d, qual %d, TSF %llu\n",
 		rx_status.signal, rx_status.noise, rx_status.qual,
 		(unsigned long long)rx_status.mactime);
diff --git a/drivers/net/wireless/iwlwifi/iwl-tx.c b/drivers/net/wireless/iwlwifi/iwl-tx.c
index 0cac06c43f9a..c85e54cb31d2 100644
--- a/drivers/net/wireless/iwlwifi/iwl-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-tx.c
@@ -808,6 +808,7 @@ int iwl_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
 
 	/* TODO need this for burst mode later on */
 	iwl_tx_cmd_build_basic(priv, tx_cmd, info, hdr, sta_id);
+	iwl_dbg_log_tx_data_frame(priv, len, hdr);
 
 	/* set is_hcca to 0; it probably will never be implemented */
 	iwl_tx_cmd_build_rate(priv, tx_cmd, info, fc, sta_id, 0);
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index 0babce250ea4..4f5a3d035b0e 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -598,7 +598,7 @@ static int iwl3945_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
 	len = (u16)skb->len;
 	tx->len = cpu_to_le16(len);
 
-
+	iwl_dbg_log_tx_data_frame(priv, len, hdr);
 	tx->tx_flags &= ~TX_CMD_FLG_ANT_A_MSK;
 	tx->tx_flags &= ~TX_CMD_FLG_ANT_B_MSK;
 
@@ -3332,9 +3332,12 @@ static ssize_t store_debug_level(struct device *d,
 	ret = strict_strtoul(buf, 0, &val);
 	if (ret)
 		IWL_INFO(priv, "%s is not in hex or decimal form.\n", buf);
-	else
+	else {
 		priv->debug_level = val;
-
+		if (iwl_alloc_traffic_mem(priv))
+			IWL_ERR(priv,
+				"Not enough memory to generate traffic log\n");
+	}
 	return strnlen(buf, count);
 }
 
@@ -3976,6 +3979,8 @@ static int iwl3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e
 #ifdef CONFIG_IWLWIFI_DEBUG
 	atomic_set(&priv->restrict_refcnt, 0);
 #endif
+	if (iwl_alloc_traffic_mem(priv))
+		IWL_ERR(priv, "Not enough memory to generate traffic log\n");
 
 	/***************************
 	 * 2. Initializing PCI bus
@@ -4138,6 +4143,7 @@ static int iwl3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e
 	pci_disable_device(pdev);
  out_ieee80211_free_hw:
 	ieee80211_free_hw(priv->hw);
+	iwl_free_traffic_mem(priv);
  out:
 	return err;
 }
@@ -4193,6 +4199,7 @@ static void __devexit iwl3945_pci_remove(struct pci_dev *pdev)
 	 * until now... */
 	destroy_workqueue(priv->workqueue);
 	priv->workqueue = NULL;
+	iwl_free_traffic_mem(priv);
 
 	free_irq(pdev->irq, priv);
 	pci_disable_msi(pdev);
-- 
cgit v1.2.3


From 22fdf3c9e19dce6d66bcfdbed547a5aa52b89933 Mon Sep 17 00:00:00 2001
From: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Date: Fri, 7 Aug 2009 15:41:40 -0700
Subject: iwlwifi: Traffic type and counter for debugFs

Break down the traffic type and counter for both Tx and Rx.
Enhance the tx_statistics and rx_statistics debugfs function and move
to /sys/kernel/debug/ieee80211/phy0/iwlagn/debug directory to help
better debugging both driver and uCode related problems.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-3945.c     |   2 +
 drivers/net/wireless/iwlwifi/iwl-core.c     | 158 ++++++++++++++++++++++++++++
 drivers/net/wireless/iwlwifi/iwl-core.h     |   9 +-
 drivers/net/wireless/iwlwifi/iwl-debug.h    |   4 +-
 drivers/net/wireless/iwlwifi/iwl-debugfs.c  | 129 ++++++++++++++++++-----
 drivers/net/wireless/iwlwifi/iwl-dev.h      |  48 ++++++++-
 drivers/net/wireless/iwlwifi/iwl-hcmd.c     |   2 -
 drivers/net/wireless/iwlwifi/iwl-led.c      |   3 +-
 drivers/net/wireless/iwlwifi/iwl-rx.c       |  10 +-
 drivers/net/wireless/iwlwifi/iwl-tx.c       |  11 +-
 drivers/net/wireless/iwlwifi/iwl3945-base.c |   1 +
 11 files changed, 324 insertions(+), 53 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c
index bfd509f7af24..ae7f1632ccbf 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945.c
@@ -577,6 +577,8 @@ static void iwl3945_pass_packet_to_mac80211(struct iwl_priv *priv,
 	if (ieee80211_is_data(hdr->frame_control))
 		priv->rxtxpackets += len;
 #endif
+	iwl_update_stats(priv, false, hdr->frame_control, len);
+
 	memcpy(IEEE80211_SKB_RXCB(rxb->skb), stats, sizeof(*stats));
 	ieee80211_rx_irqsafe(priv->hw, rxb->skb);
 	rxb->skb = NULL;
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 1ae2ce3512c3..202bc3985a46 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -3051,6 +3051,164 @@ void iwl_dbg_log_rx_data_frame(struct iwl_priv *priv,
 	}
 }
 EXPORT_SYMBOL(iwl_dbg_log_rx_data_frame);
+
+const char *get_mgmt_string(int cmd)
+{
+	switch (cmd) {
+		IWL_CMD(MANAGEMENT_ASSOC_REQ);
+		IWL_CMD(MANAGEMENT_ASSOC_RESP);
+		IWL_CMD(MANAGEMENT_REASSOC_REQ);
+		IWL_CMD(MANAGEMENT_REASSOC_RESP);
+		IWL_CMD(MANAGEMENT_PROBE_REQ);
+		IWL_CMD(MANAGEMENT_PROBE_RESP);
+		IWL_CMD(MANAGEMENT_BEACON);
+		IWL_CMD(MANAGEMENT_ATIM);
+		IWL_CMD(MANAGEMENT_DISASSOC);
+		IWL_CMD(MANAGEMENT_AUTH);
+		IWL_CMD(MANAGEMENT_DEAUTH);
+		IWL_CMD(MANAGEMENT_ACTION);
+	default:
+		return "UNKNOWN";
+
+	}
+}
+
+const char *get_ctrl_string(int cmd)
+{
+	switch (cmd) {
+		IWL_CMD(CONTROL_BACK_REQ);
+		IWL_CMD(CONTROL_BACK);
+		IWL_CMD(CONTROL_PSPOLL);
+		IWL_CMD(CONTROL_RTS);
+		IWL_CMD(CONTROL_CTS);
+		IWL_CMD(CONTROL_ACK);
+		IWL_CMD(CONTROL_CFEND);
+		IWL_CMD(CONTROL_CFENDACK);
+	default:
+		return "UNKNOWN";
+
+	}
+}
+
+void iwl_clear_tx_stats(struct iwl_priv *priv)
+{
+	memset(&priv->tx_stats, 0, sizeof(struct traffic_stats));
+
+}
+
+void iwl_clear_rx_stats(struct iwl_priv *priv)
+{
+	memset(&priv->rx_stats, 0, sizeof(struct traffic_stats));
+}
+
+/*
+ * if CONFIG_IWLWIFI_DEBUGFS defined, iwl_update_stats function will
+ * record all the MGMT, CTRL and DATA pkt for both TX and Rx pass.
+ * Use debugFs to display the rx/rx_statistics
+ * if CONFIG_IWLWIFI_DEBUGFS not being defined, then no MGMT and CTRL
+ * information will be recorded, but DATA pkt still will be recorded
+ * for the reason of iwl_led.c need to control the led blinking based on
+ * number of tx and rx data.
+ *
+ */
+void iwl_update_stats(struct iwl_priv *priv, bool is_tx, __le16 fc, u16 len)
+{
+	struct traffic_stats	*stats;
+
+	if (is_tx)
+		stats = &priv->tx_stats;
+	else
+		stats = &priv->rx_stats;
+
+	if (ieee80211_is_mgmt(fc)) {
+		switch (fc & cpu_to_le16(IEEE80211_FCTL_STYPE)) {
+		case cpu_to_le16(IEEE80211_STYPE_ASSOC_REQ):
+			stats->mgmt[MANAGEMENT_ASSOC_REQ]++;
+			break;
+		case cpu_to_le16(IEEE80211_STYPE_ASSOC_RESP):
+			stats->mgmt[MANAGEMENT_ASSOC_RESP]++;
+			break;
+		case cpu_to_le16(IEEE80211_STYPE_REASSOC_REQ):
+			stats->mgmt[MANAGEMENT_REASSOC_REQ]++;
+			break;
+		case cpu_to_le16(IEEE80211_STYPE_REASSOC_RESP):
+			stats->mgmt[MANAGEMENT_REASSOC_RESP]++;
+			break;
+		case cpu_to_le16(IEEE80211_STYPE_PROBE_REQ):
+			stats->mgmt[MANAGEMENT_PROBE_REQ]++;
+			break;
+		case cpu_to_le16(IEEE80211_STYPE_PROBE_RESP):
+			stats->mgmt[MANAGEMENT_PROBE_RESP]++;
+			break;
+		case cpu_to_le16(IEEE80211_STYPE_BEACON):
+			stats->mgmt[MANAGEMENT_BEACON]++;
+			break;
+		case cpu_to_le16(IEEE80211_STYPE_ATIM):
+			stats->mgmt[MANAGEMENT_ATIM]++;
+			break;
+		case cpu_to_le16(IEEE80211_STYPE_DISASSOC):
+			stats->mgmt[MANAGEMENT_DISASSOC]++;
+			break;
+		case cpu_to_le16(IEEE80211_STYPE_AUTH):
+			stats->mgmt[MANAGEMENT_AUTH]++;
+			break;
+		case cpu_to_le16(IEEE80211_STYPE_DEAUTH):
+			stats->mgmt[MANAGEMENT_DEAUTH]++;
+			break;
+		case cpu_to_le16(IEEE80211_STYPE_ACTION):
+			stats->mgmt[MANAGEMENT_ACTION]++;
+			break;
+		}
+	} else if (ieee80211_is_ctl(fc)) {
+		switch (fc & cpu_to_le16(IEEE80211_FCTL_STYPE)) {
+		case cpu_to_le16(IEEE80211_STYPE_BACK_REQ):
+			stats->ctrl[CONTROL_BACK_REQ]++;
+			break;
+		case cpu_to_le16(IEEE80211_STYPE_BACK):
+			stats->ctrl[CONTROL_BACK]++;
+			break;
+		case cpu_to_le16(IEEE80211_STYPE_PSPOLL):
+			stats->ctrl[CONTROL_PSPOLL]++;
+			break;
+		case cpu_to_le16(IEEE80211_STYPE_RTS):
+			stats->ctrl[CONTROL_RTS]++;
+			break;
+		case cpu_to_le16(IEEE80211_STYPE_CTS):
+			stats->ctrl[CONTROL_CTS]++;
+			break;
+		case cpu_to_le16(IEEE80211_STYPE_ACK):
+			stats->ctrl[CONTROL_ACK]++;
+			break;
+		case cpu_to_le16(IEEE80211_STYPE_CFEND):
+			stats->ctrl[CONTROL_CFEND]++;
+			break;
+		case cpu_to_le16(IEEE80211_STYPE_CFENDACK):
+			stats->ctrl[CONTROL_CFENDACK]++;
+			break;
+		}
+	} else {
+		/* data */
+		stats->data_cnt++;
+		stats->data_bytes += len;
+	}
+}
+EXPORT_SYMBOL(iwl_update_stats);
+
+#else
+void iwl_update_stats(struct iwl_priv *priv, bool is_tx, __le16 fc, u16 len)
+{
+	struct traffic_stats	*stats;
+
+	if (is_tx)
+		stats = &priv->tx_stats;
+	else
+		stats = &priv->rx_stats;
+
+	if (ieee80211_is_data(fc)) {
+		/* data */
+		stats->data_bytes += len;
+	}
+}
 #endif
 
 #ifdef CONFIG_PM
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h
index 40a9167cacce..fc096b929ee3 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.h
+++ b/drivers/net/wireless/iwlwifi/iwl-core.h
@@ -83,6 +83,8 @@ struct iwl_cmd;
 #define IWL_SKU_A       0x2
 #define IWL_SKU_N       0x8
 
+#define IWL_CMD(x) case x: return #x
+
 struct iwl_hcmd_ops {
 	int (*rxon_assoc)(struct iwl_priv *priv);
 	int (*commit_rxon)(struct iwl_priv *priv);
@@ -308,7 +310,10 @@ void iwl_dbg_log_tx_data_frame(struct iwl_priv *priv,
 				u16 length, struct ieee80211_hdr *header);
 void iwl_dbg_log_rx_data_frame(struct iwl_priv *priv,
 				u16 length, struct ieee80211_hdr *header);
-
+const char *get_mgmt_string(int cmd);
+const char *get_ctrl_string(int cmd);
+void iwl_clear_tx_stats(struct iwl_priv *priv);
+void iwl_clear_rx_stats(struct iwl_priv *priv);
 #else
 static inline int iwl_alloc_traffic_mem(struct iwl_priv *priv)
 {
@@ -329,6 +334,8 @@ static inline void iwl_dbg_log_rx_data_frame(struct iwl_priv *priv,
 {
 }
 #endif
+void iwl_update_stats(struct iwl_priv *priv, bool is_tx, __le16 fc,
+		      u16 len);
 /*****************************************************
  * RX handlers.
  * **************************************************/
diff --git a/drivers/net/wireless/iwlwifi/iwl-debug.h b/drivers/net/wireless/iwlwifi/iwl-debug.h
index 335ff5c43966..4ac06ad69ed3 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debug.h
+++ b/drivers/net/wireless/iwlwifi/iwl-debug.h
@@ -78,8 +78,6 @@ struct iwl_debugfs {
 		struct dentry *file_sram;
 		struct dentry *file_nvm;
 		struct dentry *file_stations;
-		struct dentry *file_rx_statistics;
-		struct dentry *file_tx_statistics;
 		struct dentry *file_log_event;
 		struct dentry *file_channels;
 		struct dentry *file_status;
@@ -97,6 +95,8 @@ struct iwl_debugfs {
 		struct dentry *file_disable_tx_power;
 	} dbgfs_rf_files;
 	struct dir_debug_files {
+		struct dentry *file_rx_statistics;
+		struct dentry *file_tx_statistics;
 		struct dentry *file_traffic_log;
 	} dbgfs_debug_files;
 	u32 sram_offset;
diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
index 031538c42063..a0e5063cd8c9 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
@@ -126,18 +126,58 @@ static ssize_t iwl_dbgfs_tx_statistics_read(struct file *file,
 						size_t count, loff_t *ppos) {
 
 	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
-	char buf[256];
+	char *buf;
 	int pos = 0;
-	const size_t bufsz = sizeof(buf);
 
-	pos += scnprintf(buf + pos, bufsz - pos, "mgmt: %u\n",
-						priv->tx_stats[0].cnt);
-	pos += scnprintf(buf + pos, bufsz - pos, "ctrl: %u\n",
-						priv->tx_stats[1].cnt);
-	pos += scnprintf(buf + pos, bufsz - pos, "data: %u\n",
-						priv->tx_stats[2].cnt);
+	int cnt;
+	ssize_t ret;
+	const size_t bufsz = 100 + sizeof(char) * 24 * (MANAGEMENT_MAX + CONTROL_MAX);
+	buf = kzalloc(bufsz, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+	pos += scnprintf(buf + pos, bufsz - pos, "Management:\n");
+	for (cnt = 0; cnt < MANAGEMENT_MAX; cnt++) {
+		pos += scnprintf(buf + pos, bufsz - pos,
+				 "\t%s\t\t: %u\n",
+				 get_mgmt_string(cnt),
+				 priv->tx_stats.mgmt[cnt]);
+	}
+	pos += scnprintf(buf + pos, bufsz - pos, "Control\n");
+	for (cnt = 0; cnt < CONTROL_MAX; cnt++) {
+		pos += scnprintf(buf + pos, bufsz - pos,
+				 "\t%s\t\t: %u\n",
+				 get_ctrl_string(cnt),
+				 priv->tx_stats.ctrl[cnt]);
+	}
+	pos += scnprintf(buf + pos, bufsz - pos, "Data:\n");
+	pos += scnprintf(buf + pos, bufsz - pos, "\tcnt: %u\n",
+			 priv->tx_stats.data_cnt);
+	pos += scnprintf(buf + pos, bufsz - pos, "\tbytes: %llu\n",
+			 priv->tx_stats.data_bytes);
+	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+	kfree(buf);
+	return ret;
+}
+
+static ssize_t iwl_dbgfs_tx_statistics_write(struct file *file,
+					const char __user *user_buf,
+					size_t count, loff_t *ppos)
+{
+	struct iwl_priv *priv = file->private_data;
+	u32 clear_flag;
+	char buf[8];
+	int buf_size;
 
-	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+	memset(buf, 0, sizeof(buf));
+	buf_size = min(count, sizeof(buf) -  1);
+	if (copy_from_user(buf, user_buf, buf_size))
+		return -EFAULT;
+	if (sscanf(buf, "%x", &clear_flag) != 1)
+		return -EFAULT;
+	if (clear_flag == 1)
+		iwl_clear_tx_stats(priv);
+
+	return count;
 }
 
 static ssize_t iwl_dbgfs_rx_statistics_read(struct file *file,
@@ -145,18 +185,59 @@ static ssize_t iwl_dbgfs_rx_statistics_read(struct file *file,
 						size_t count, loff_t *ppos) {
 
 	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
-	char buf[256];
+	char *buf;
 	int pos = 0;
-	const size_t bufsz = sizeof(buf);
+	int cnt;
+	ssize_t ret;
+	const size_t bufsz = 100 +
+		sizeof(char) * 24 * (MANAGEMENT_MAX + CONTROL_MAX);
+	buf = kzalloc(bufsz, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
 
-	pos += scnprintf(buf + pos, bufsz - pos, "mgmt: %u\n",
-						priv->rx_stats[0].cnt);
-	pos += scnprintf(buf + pos, bufsz - pos, "ctrl: %u\n",
-						priv->rx_stats[1].cnt);
-	pos += scnprintf(buf + pos, bufsz - pos, "data: %u\n",
-						priv->rx_stats[2].cnt);
+	pos += scnprintf(buf + pos, bufsz - pos, "Management:\n");
+	for (cnt = 0; cnt < MANAGEMENT_MAX; cnt++) {
+		pos += scnprintf(buf + pos, bufsz - pos,
+				 "\t%s\t\t: %u\n",
+				 get_mgmt_string(cnt),
+				 priv->rx_stats.mgmt[cnt]);
+	}
+	pos += scnprintf(buf + pos, bufsz - pos, "Control:\n");
+	for (cnt = 0; cnt < CONTROL_MAX; cnt++) {
+		pos += scnprintf(buf + pos, bufsz - pos,
+				 "\t%s\t\t: %u\n",
+				 get_ctrl_string(cnt),
+				 priv->rx_stats.ctrl[cnt]);
+	}
+	pos += scnprintf(buf + pos, bufsz - pos, "Data:\n");
+	pos += scnprintf(buf + pos, bufsz - pos, "\tcnt: %u\n",
+			 priv->rx_stats.data_cnt);
+	pos += scnprintf(buf + pos, bufsz - pos, "\tbytes: %llu\n",
+			 priv->rx_stats.data_bytes);
 
-	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+	kfree(buf);
+	return ret;
+}
+
+static ssize_t iwl_dbgfs_rx_statistics_write(struct file *file,
+					const char __user *user_buf,
+					size_t count, loff_t *ppos)
+{
+	struct iwl_priv *priv = file->private_data;
+	u32 clear_flag;
+	char buf[8];
+	int buf_size;
+
+	memset(buf, 0, sizeof(buf));
+	buf_size = min(count, sizeof(buf) -  1);
+	if (copy_from_user(buf, user_buf, buf_size))
+		return -EFAULT;
+	if (sscanf(buf, "%x", &clear_flag) != 1)
+		return -EFAULT;
+	if (clear_flag == 1)
+		iwl_clear_rx_stats(priv);
+	return count;
 }
 
 #define BYTE1_MASK 0x000000ff;
@@ -700,8 +781,6 @@ DEBUGFS_READ_WRITE_FILE_OPS(sram);
 DEBUGFS_WRITE_FILE_OPS(log_event);
 DEBUGFS_READ_FILE_OPS(nvm);
 DEBUGFS_READ_FILE_OPS(stations);
-DEBUGFS_READ_FILE_OPS(rx_statistics);
-DEBUGFS_READ_FILE_OPS(tx_statistics);
 DEBUGFS_READ_FILE_OPS(channels);
 DEBUGFS_READ_FILE_OPS(status);
 DEBUGFS_READ_WRITE_FILE_OPS(interrupt);
@@ -808,6 +887,8 @@ static ssize_t iwl_dbgfs_traffic_log_write(struct file *file,
 	return count;
 }
 
+DEBUGFS_READ_WRITE_FILE_OPS(rx_statistics);
+DEBUGFS_READ_WRITE_FILE_OPS(tx_statistics);
 DEBUGFS_READ_WRITE_FILE_OPS(traffic_log);
 
 /*
@@ -841,8 +922,6 @@ int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
 	DEBUGFS_ADD_FILE(sram, data);
 	DEBUGFS_ADD_FILE(log_event, data);
 	DEBUGFS_ADD_FILE(stations, data);
-	DEBUGFS_ADD_FILE(rx_statistics, data);
-	DEBUGFS_ADD_FILE(tx_statistics, data);
 	DEBUGFS_ADD_FILE(channels, data);
 	DEBUGFS_ADD_FILE(status, data);
 	DEBUGFS_ADD_FILE(interrupt, data);
@@ -852,6 +931,8 @@ int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
 #endif
 	DEBUGFS_ADD_FILE(thermal_throttling, data);
 	DEBUGFS_ADD_FILE(disable_ht40, data);
+	DEBUGFS_ADD_FILE(rx_statistics, debug);
+	DEBUGFS_ADD_FILE(tx_statistics, debug);
 	DEBUGFS_ADD_FILE(traffic_log, debug);
 	DEBUGFS_ADD_BOOL(disable_sensitivity, rf, &priv->disable_sens_cal);
 	DEBUGFS_ADD_BOOL(disable_chain_noise, rf,
@@ -879,8 +960,6 @@ void iwl_dbgfs_unregister(struct iwl_priv *priv)
 		return;
 
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_nvm);
-	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_rx_statistics);
-	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_tx_statistics);
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_sram);
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_log_event);
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_stations);
@@ -894,6 +973,8 @@ void iwl_dbgfs_unregister(struct iwl_priv *priv)
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_thermal_throttling);
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_disable_ht40);
 	DEBUGFS_REMOVE(priv->dbgfs->dir_data);
+	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_rx_statistics);
+	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_tx_statistics);
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_traffic_log);
 	DEBUGFS_REMOVE(priv->dbgfs->dir_debug);
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_sensitivity);
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index 899b75f28a23..dcf9d5763237 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -919,6 +919,48 @@ struct isr_statistics {
 	u32 unhandled;
 };
 
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+/* management statistics */
+enum iwl_mgmt_stats {
+	MANAGEMENT_ASSOC_REQ = 0,
+	MANAGEMENT_ASSOC_RESP,
+	MANAGEMENT_REASSOC_REQ,
+	MANAGEMENT_REASSOC_RESP,
+	MANAGEMENT_PROBE_REQ,
+	MANAGEMENT_PROBE_RESP,
+	MANAGEMENT_BEACON,
+	MANAGEMENT_ATIM,
+	MANAGEMENT_DISASSOC,
+	MANAGEMENT_AUTH,
+	MANAGEMENT_DEAUTH,
+	MANAGEMENT_ACTION,
+	MANAGEMENT_MAX,
+};
+/* control statistics */
+enum iwl_ctrl_stats {
+	CONTROL_BACK_REQ =  0,
+	CONTROL_BACK,
+	CONTROL_PSPOLL,
+	CONTROL_RTS,
+	CONTROL_CTS,
+	CONTROL_ACK,
+	CONTROL_CFEND,
+	CONTROL_CFENDACK,
+	CONTROL_MAX,
+};
+
+struct traffic_stats {
+	u32 mgmt[MANAGEMENT_MAX];
+	u32 ctrl[CONTROL_MAX];
+	u32 data_cnt;
+	u64 data_bytes;
+};
+#else
+struct traffic_stats {
+	u64 data_bytes;
+};
+#endif
+
 #define IWL_MAX_NUM_QUEUES	20 /* FIXME: do dynamic allocation */
 
 struct iwl_priv {
@@ -1064,10 +1106,8 @@ struct iwl_priv {
 	int last_rx_noise;	/* From beacon statistics */
 
 	/* counts mgmt, ctl, and data packets */
-	struct traffic_stats {
-		u32 cnt;
-		u64 bytes;
-	} tx_stats[3], rx_stats[3];
+	struct traffic_stats tx_stats;
+	struct traffic_stats rx_stats;
 
 	/* counts interrupts */
 	struct isr_statistics isr_stats;
diff --git a/drivers/net/wireless/iwlwifi/iwl-hcmd.c b/drivers/net/wireless/iwlwifi/iwl-hcmd.c
index b82ad15d5189..532c8d6cd8da 100644
--- a/drivers/net/wireless/iwlwifi/iwl-hcmd.c
+++ b/drivers/net/wireless/iwlwifi/iwl-hcmd.c
@@ -36,8 +36,6 @@
 #include "iwl-core.h"
 
 
-#define IWL_CMD(x) case x: return #x
-
 const char *get_cmd_string(u8 cmd)
 {
 	switch (cmd) {
diff --git a/drivers/net/wireless/iwlwifi/iwl-led.c b/drivers/net/wireless/iwlwifi/iwl-led.c
index 3d61cb43151c..f420c99e7240 100644
--- a/drivers/net/wireless/iwlwifi/iwl-led.c
+++ b/drivers/net/wireless/iwlwifi/iwl-led.c
@@ -272,7 +272,8 @@ static int iwl_get_blink_rate(struct iwl_priv *priv)
 	/* count both tx and rx traffic to be able to
 	 * handle traffic in either direction
 	 */
-	u64 current_tpt = priv->tx_stats[2].bytes + priv->rx_stats[2].bytes;
+	u64 current_tpt = priv->tx_stats.data_bytes +
+			  priv->rx_stats.data_bytes;
 	s64 tpt = current_tpt - priv->led_tpt;
 
 	if (tpt < 0) /* wraparound */
diff --git a/drivers/net/wireless/iwlwifi/iwl-rx.c b/drivers/net/wireless/iwlwifi/iwl-rx.c
index 55860037f98a..43b2fce4cbf0 100644
--- a/drivers/net/wireless/iwlwifi/iwl-rx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-rx.c
@@ -745,14 +745,6 @@ static void iwl_dbg_report_frame(struct iwl_priv *priv,
 }
 #endif
 
-static void iwl_update_rx_stats(struct iwl_priv *priv, u16 fc, u16 len)
-{
-	/* 0 - mgmt, 1 - cnt, 2 - data */
-	int idx = (fc & IEEE80211_FCTL_FTYPE) >> 2;
-	priv->rx_stats[idx].cnt++;
-	priv->rx_stats[idx].bytes += len;
-}
-
 /*
  * returns non-zero if packet should be dropped
  */
@@ -930,7 +922,7 @@ static void iwl_pass_packet_to_mac80211(struct iwl_priv *priv,
 	    iwl_set_decrypted_flag(priv, hdr, ampdu_status, stats))
 		return;
 
-	iwl_update_rx_stats(priv, le16_to_cpu(hdr->frame_control), len);
+	iwl_update_stats(priv, false, hdr->frame_control, len);
 	memcpy(IEEE80211_SKB_RXCB(rxb->skb), stats, sizeof(*stats));
 	ieee80211_rx_irqsafe(priv->hw, rxb->skb);
 	priv->alloc_rxb_skb--;
diff --git a/drivers/net/wireless/iwlwifi/iwl-tx.c b/drivers/net/wireless/iwlwifi/iwl-tx.c
index c85e54cb31d2..9b76bd41f214 100644
--- a/drivers/net/wireless/iwlwifi/iwl-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-tx.c
@@ -668,14 +668,6 @@ static void iwl_tx_cmd_build_hwcrypto(struct iwl_priv *priv,
 	}
 }
 
-static void iwl_update_tx_stats(struct iwl_priv *priv, u16 fc, u16 len)
-{
-	/* 0 - mgmt, 1 - cnt, 2 - data */
-	int idx = (fc & IEEE80211_FCTL_FTYPE) >> 2;
-	priv->tx_stats[idx].cnt++;
-	priv->tx_stats[idx].bytes += len;
-}
-
 /*
  * start REPLY_TX command process
  */
@@ -813,8 +805,7 @@ int iwl_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
 	/* set is_hcca to 0; it probably will never be implemented */
 	iwl_tx_cmd_build_rate(priv, tx_cmd, info, fc, sta_id, 0);
 
-	iwl_update_tx_stats(priv, le16_to_cpu(fc), len);
-
+	iwl_update_stats(priv, true, fc, len);
 	/*
 	 * Use the first empty entry in this queue's command buffer array
 	 * to contain the Tx command and MAC header concatenated together
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index 4f5a3d035b0e..e5fa672e8390 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -599,6 +599,7 @@ static int iwl3945_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
 	tx->len = cpu_to_le16(len);
 
 	iwl_dbg_log_tx_data_frame(priv, len, hdr);
+	iwl_update_stats(priv, true, fc, len);
 	tx->tx_flags &= ~TX_CMD_FLG_ANT_A_MSK;
 	tx->tx_flags &= ~TX_CMD_FLG_ANT_B_MSK;
 
-- 
cgit v1.2.3


From 141b03e07a54af68fc099459bf780a182b240b45 Mon Sep 17 00:00:00 2001
From: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Date: Fri, 7 Aug 2009 15:41:41 -0700
Subject: iwlwifi: tx/rx queue pointer information

Adding debugfs function to show current TxFifo/RxFifo read/write
pointer, plus the current tx queue status (wake/stop) for both real and
virtual queue.
This is part of debug feature set to help debugging driver/uCode.

use tx_queue and rx_queue in
/sys/kernel/debug/ieee80211/phy0/iwlagn/debug directory to show the
current read/write pointer for both TxFifo and RxFifo queue

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-debug.h   |  2 +
 drivers/net/wireless/iwlwifi/iwl-debugfs.c | 69 ++++++++++++++++++++++++++++++
 2 files changed, 71 insertions(+)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-debug.h b/drivers/net/wireless/iwlwifi/iwl-debug.h
index 4ac06ad69ed3..cad5e27fe8b0 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debug.h
+++ b/drivers/net/wireless/iwlwifi/iwl-debug.h
@@ -98,6 +98,8 @@ struct iwl_debugfs {
 		struct dentry *file_rx_statistics;
 		struct dentry *file_tx_statistics;
 		struct dentry *file_traffic_log;
+		struct dentry *file_rx_queue;
+		struct dentry *file_tx_queue;
 	} dbgfs_debug_files;
 	u32 sram_offset;
 	u32 sram_len;
diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
index a0e5063cd8c9..d4109cbb4f31 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
@@ -887,9 +887,74 @@ static ssize_t iwl_dbgfs_traffic_log_write(struct file *file,
 	return count;
 }
 
+static ssize_t iwl_dbgfs_tx_queue_read(struct file *file,
+						char __user *user_buf,
+						size_t count, loff_t *ppos) {
+
+	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+	struct iwl_tx_queue *txq;
+	struct iwl_queue *q;
+	char *buf;
+	int pos = 0;
+	int cnt;
+	int ret;
+	const size_t bufsz = sizeof(char) * 60 * IWL_MAX_NUM_QUEUES;
+
+	buf = kzalloc(bufsz, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
+	for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) {
+		txq = &priv->txq[cnt];
+		q = &txq->q;
+		pos += scnprintf(buf + pos, bufsz - pos,
+				"hwq %.2d: read=%u write=%u stop=%d"
+				" swq_id=%#.2x (ac %d/hwq %d)\n",
+				cnt, q->read_ptr, q->write_ptr,
+				!!test_bit(cnt, priv->queue_stopped),
+				txq->swq_id,
+				txq->swq_id & 0x80 ? txq->swq_id & 3 :
+				txq->swq_id,
+				txq->swq_id & 0x80 ? (txq->swq_id >> 2) &
+				0x1f : txq->swq_id);
+		if (cnt >= 4)
+			continue;
+		/* for the ACs, display the stop count too */
+		pos += scnprintf(buf + pos, bufsz - pos,
+				"        stop-count: %d\n",
+				atomic_read(&priv->queue_stop_count[cnt]));
+	}
+	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+	kfree(buf);
+	return ret;
+}
+
+static ssize_t iwl_dbgfs_rx_queue_read(struct file *file,
+						char __user *user_buf,
+						size_t count, loff_t *ppos) {
+
+	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+	struct iwl_rx_queue *rxq = &priv->rxq;
+	char buf[256];
+	int pos = 0;
+	const size_t bufsz = sizeof(buf);
+
+	pos += scnprintf(buf + pos, bufsz - pos, "read: %u\n",
+						rxq->read);
+	pos += scnprintf(buf + pos, bufsz - pos, "write: %u\n",
+						rxq->write);
+	pos += scnprintf(buf + pos, bufsz - pos, "free_count: %u\n",
+						rxq->free_count);
+	pos += scnprintf(buf + pos, bufsz - pos, "closed_rb_num: %u\n",
+			 le16_to_cpu(rxq->rb_stts->closed_rb_num) &  0x0FFF);
+	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+}
+
 DEBUGFS_READ_WRITE_FILE_OPS(rx_statistics);
 DEBUGFS_READ_WRITE_FILE_OPS(tx_statistics);
 DEBUGFS_READ_WRITE_FILE_OPS(traffic_log);
+DEBUGFS_READ_FILE_OPS(rx_queue);
+DEBUGFS_READ_FILE_OPS(tx_queue);
 
 /*
  * Create the debugfs files and directories
@@ -934,6 +999,8 @@ int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
 	DEBUGFS_ADD_FILE(rx_statistics, debug);
 	DEBUGFS_ADD_FILE(tx_statistics, debug);
 	DEBUGFS_ADD_FILE(traffic_log, debug);
+	DEBUGFS_ADD_FILE(rx_queue, debug);
+	DEBUGFS_ADD_FILE(tx_queue, debug);
 	DEBUGFS_ADD_BOOL(disable_sensitivity, rf, &priv->disable_sens_cal);
 	DEBUGFS_ADD_BOOL(disable_chain_noise, rf,
 			 &priv->disable_chain_noise_cal);
@@ -976,6 +1043,8 @@ void iwl_dbgfs_unregister(struct iwl_priv *priv)
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_rx_statistics);
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_tx_statistics);
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_traffic_log);
+	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_rx_queue);
+	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_tx_queue);
 	DEBUGFS_REMOVE(priv->dbgfs->dir_debug);
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_sensitivity);
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_chain_noise);
-- 
cgit v1.2.3


From e8fe59aecb9020b06305be4f8c67d73cbf49cbd2 Mon Sep 17 00:00:00 2001
From: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Date: Fri, 7 Aug 2009 15:41:42 -0700
Subject: iwlwifi: uCode statistics notification counter

Display statistics notification information
The information break down into
    uCode_tx_stats
    uCode_rx_stats
    uCode_general_stats
and can be found in /sys/kernel/debug/ieee80211/phy0/iwlagn/debug
directory

The statistic information display in debugFs is based on the last
statistics notification from uCode; it might not reflect the current
uCode activity. Using "watch" command to monitor the uCode
activity should give up-to-date statistics provided by uCode.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-debug.h   |   3 +
 drivers/net/wireless/iwlwifi/iwl-debugfs.c | 412 +++++++++++++++++++++++++++++
 2 files changed, 415 insertions(+)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-debug.h b/drivers/net/wireless/iwlwifi/iwl-debug.h
index cad5e27fe8b0..18b8cf792130 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debug.h
+++ b/drivers/net/wireless/iwlwifi/iwl-debug.h
@@ -100,6 +100,9 @@ struct iwl_debugfs {
 		struct dentry *file_traffic_log;
 		struct dentry *file_rx_queue;
 		struct dentry *file_tx_queue;
+		struct dentry *file_ucode_rx_stats;
+		struct dentry *file_ucode_tx_stats;
+		struct dentry *file_ucode_general_stats;
 	} dbgfs_debug_files;
 	u32 sram_offset;
 	u32 sram_len;
diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
index d4109cbb4f31..20e4edb36ec4 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
@@ -950,11 +950,410 @@ static ssize_t iwl_dbgfs_rx_queue_read(struct file *file,
 	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 }
 
+#define UCODE_STATISTICS_CLEAR_MSK		(0x1 << 0)
+#define UCODE_STATISTICS_FREQUENCY_MSK		(0x1 << 1)
+#define UCODE_STATISTICS_NARROW_BAND_MSK	(0x1 << 2)
+
+static int iwl_dbgfs_statistics_flag(struct iwl_priv *priv, char *buf,
+				     int bufsz)
+{
+	int p = 0;
+
+	p += scnprintf(buf + p, bufsz - p,
+		"Statistics Flag(0x%X):\n",
+		le32_to_cpu(priv->statistics.flag));
+	if (le32_to_cpu(priv->statistics.flag) & UCODE_STATISTICS_CLEAR_MSK)
+		p += scnprintf(buf + p, bufsz - p,
+		"\tStatistics have been cleared\n");
+	p += scnprintf(buf + p, bufsz - p,
+		"\tOperational Frequency: %s\n",
+		(le32_to_cpu(priv->statistics.flag) &
+		UCODE_STATISTICS_FREQUENCY_MSK)
+		 ? "2.4 GHz" : "5.2 GHz");
+	p += scnprintf(buf + p, bufsz - p,
+		"\tTGj Narrow Band: %s\n",
+		(le32_to_cpu(priv->statistics.flag) &
+		UCODE_STATISTICS_NARROW_BAND_MSK)
+		 ? "enabled" : "disabled");
+	return p;
+}
+
+
+static ssize_t iwl_dbgfs_ucode_rx_stats_read(struct file *file,
+					char __user *user_buf,
+					size_t count, loff_t *ppos)
+{
+	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+	int pos = 0;
+	char *buf;
+	int bufsz = sizeof(struct statistics_rx_phy) * 20 +
+		sizeof(struct statistics_rx_non_phy) * 20 +
+		sizeof(struct statistics_rx_ht_phy) * 20 + 400;
+	ssize_t ret;
+	struct statistics_rx_phy *ofdm;
+	struct statistics_rx_phy *cck;
+	struct statistics_rx_non_phy *general;
+	struct statistics_rx_ht_phy *ht;
+
+	if (!iwl_is_alive(priv))
+		return -EAGAIN;
+
+	/* make request to uCode to retrieve statistics information */
+	mutex_lock(&priv->mutex);
+	ret = iwl_send_statistics_request(priv, 0);
+	mutex_unlock(&priv->mutex);
+
+	if (ret) {
+		IWL_ERR(priv,
+			"Error sending statistics request: %zd\n", ret);
+		return -EAGAIN;
+	}
+	buf = kzalloc(bufsz, GFP_KERNEL);
+	if (!buf) {
+		IWL_ERR(priv, "Can not allocate Buffer\n");
+		return -ENOMEM;
+	}
+
+	/* the statistic information display here is based on
+	 * the last statistics notification from uCode
+	 * might not reflect the current uCode activity
+	 */
+	ofdm = &priv->statistics.rx.ofdm;
+	cck = &priv->statistics.rx.cck;
+	general = &priv->statistics.rx.general;
+	ht = &priv->statistics.rx.ofdm_ht;
+	pos += iwl_dbgfs_statistics_flag(priv, buf, bufsz);
+	pos += scnprintf(buf + pos, bufsz - pos, "Statistics_Rx - OFDM:\n");
+	pos += scnprintf(buf + pos, bufsz - pos, "ina_cnt: %u\n",
+			 le32_to_cpu(ofdm->ina_cnt));
+	pos += scnprintf(buf + pos, bufsz - pos, "fina_cnt: %u\n",
+			 le32_to_cpu(ofdm->fina_cnt));
+	pos += scnprintf(buf + pos, bufsz - pos, "plcp_err: %u\n",
+			 le32_to_cpu(ofdm->plcp_err));
+	pos += scnprintf(buf + pos, bufsz - pos, "crc32_err: %u\n",
+			 le32_to_cpu(ofdm->crc32_err));
+	pos += scnprintf(buf + pos, bufsz - pos, "overrun_err: %u\n",
+			 le32_to_cpu(ofdm->overrun_err));
+	pos += scnprintf(buf + pos, bufsz - pos, "early_overrun_err: %u\n",
+			 le32_to_cpu(ofdm->early_overrun_err));
+	pos += scnprintf(buf + pos, bufsz - pos, "crc32_good: %u\n",
+			 le32_to_cpu(ofdm->crc32_good));
+	pos += scnprintf(buf + pos, bufsz - pos, "false_alarm_cnt: %u\n",
+			 le32_to_cpu(ofdm->false_alarm_cnt));
+	pos += scnprintf(buf + pos, bufsz - pos, "fina_sync_err_cnt: %u\n",
+			 le32_to_cpu(ofdm->fina_sync_err_cnt));
+	pos += scnprintf(buf + pos, bufsz - pos, "sfd_timeout: %u\n",
+			 le32_to_cpu(ofdm->sfd_timeout));
+	pos += scnprintf(buf + pos, bufsz - pos, "fina_timeout: %u\n",
+			 le32_to_cpu(ofdm->fina_timeout));
+	pos += scnprintf(buf + pos, bufsz - pos, "unresponded_rts: %u\n",
+			 le32_to_cpu(ofdm->unresponded_rts));
+	pos += scnprintf(buf + pos, bufsz - pos,
+			"rxe_frame_limit_overrun: %u\n",
+			le32_to_cpu(ofdm->rxe_frame_limit_overrun));
+	pos += scnprintf(buf + pos, bufsz - pos, "sent_ack_cnt: %u\n",
+			 le32_to_cpu(ofdm->sent_ack_cnt));
+	pos += scnprintf(buf + pos, bufsz - pos, "sent_cts_cnt: %u\n",
+			 le32_to_cpu(ofdm->sent_cts_cnt));
+	pos += scnprintf(buf + pos, bufsz - pos, "sent_ba_rsp_cnt: %u\n",
+			 le32_to_cpu(ofdm->sent_ba_rsp_cnt));
+	pos += scnprintf(buf + pos, bufsz - pos, "dsp_self_kill: %u\n",
+			 le32_to_cpu(ofdm->dsp_self_kill));
+	pos += scnprintf(buf + pos, bufsz - pos, "mh_format_err: %u\n",
+			 le32_to_cpu(ofdm->mh_format_err));
+	pos += scnprintf(buf + pos, bufsz - pos, "re_acq_main_rssi_sum: %u\n",
+			 le32_to_cpu(ofdm->re_acq_main_rssi_sum));
+
+	pos += scnprintf(buf + pos, bufsz - pos, "Statistics_Rx - CCK:\n");
+	pos += scnprintf(buf + pos, bufsz - pos, "ina_cnt: %u\n",
+			 le32_to_cpu(cck->ina_cnt));
+	pos += scnprintf(buf + pos, bufsz - pos, "fina_cnt: %u\n",
+			 le32_to_cpu(cck->fina_cnt));
+	pos += scnprintf(buf + pos, bufsz - pos, "plcp_err: %u\n",
+			 le32_to_cpu(cck->plcp_err));
+	pos += scnprintf(buf + pos, bufsz - pos, "crc32_err: %u\n",
+			 le32_to_cpu(cck->crc32_err));
+	pos += scnprintf(buf + pos, bufsz - pos, "overrun_err: %u\n",
+			 le32_to_cpu(cck->overrun_err));
+	pos += scnprintf(buf + pos, bufsz - pos, "early_overrun_err: %u\n",
+			 le32_to_cpu(cck->early_overrun_err));
+	pos += scnprintf(buf + pos, bufsz - pos, "crc32_good: %u\n",
+			 le32_to_cpu(cck->crc32_good));
+	pos += scnprintf(buf + pos, bufsz - pos, "false_alarm_cnt: %u\n",
+			 le32_to_cpu(cck->false_alarm_cnt));
+	pos += scnprintf(buf + pos, bufsz - pos, "fina_sync_err_cnt: %u\n",
+			 le32_to_cpu(cck->fina_sync_err_cnt));
+	pos += scnprintf(buf + pos, bufsz - pos, "sfd_timeout: %u\n",
+			 le32_to_cpu(cck->sfd_timeout));
+	pos += scnprintf(buf + pos, bufsz - pos, "fina_timeout: %u\n",
+			 le32_to_cpu(cck->fina_timeout));
+	pos += scnprintf(buf + pos, bufsz - pos, "unresponded_rts: %u\n",
+			 le32_to_cpu(cck->unresponded_rts));
+	pos += scnprintf(buf + pos, bufsz - pos,
+			"rxe_frame_limit_overrun: %u\n",
+			le32_to_cpu(cck->rxe_frame_limit_overrun));
+	pos += scnprintf(buf + pos, bufsz - pos, "sent_ack_cnt: %u\n",
+			 le32_to_cpu(cck->sent_ack_cnt));
+	pos += scnprintf(buf + pos, bufsz - pos, "sent_cts_cnt: %u\n",
+			 le32_to_cpu(cck->sent_cts_cnt));
+	pos += scnprintf(buf + pos, bufsz - pos, "sent_ba_rsp_cnt: %u\n",
+			 le32_to_cpu(cck->sent_ba_rsp_cnt));
+	pos += scnprintf(buf + pos, bufsz - pos, "dsp_self_kill: %u\n",
+			 le32_to_cpu(cck->dsp_self_kill));
+	pos += scnprintf(buf + pos, bufsz - pos, "mh_format_err: %u\n",
+			 le32_to_cpu(cck->mh_format_err));
+	pos += scnprintf(buf + pos, bufsz - pos, "re_acq_main_rssi_sum: %u\n",
+			 le32_to_cpu(cck->re_acq_main_rssi_sum));
+
+	pos += scnprintf(buf + pos, bufsz - pos, "Statistics_Rx - GENERAL:\n");
+	pos += scnprintf(buf + pos, bufsz - pos, "bogus_cts: %u\n",
+			 le32_to_cpu(general->bogus_cts));
+	pos += scnprintf(buf + pos, bufsz - pos, "bogus_ack: %u\n",
+			 le32_to_cpu(general->bogus_ack));
+	pos += scnprintf(buf + pos, bufsz - pos, "non_bssid_frames: %u\n",
+			 le32_to_cpu(general->non_bssid_frames));
+	pos += scnprintf(buf + pos, bufsz - pos, "filtered_frames: %u\n",
+			 le32_to_cpu(general->filtered_frames));
+	pos += scnprintf(buf + pos, bufsz - pos, "non_channel_beacons: %u\n",
+			 le32_to_cpu(general->non_channel_beacons));
+	pos += scnprintf(buf + pos, bufsz - pos, "channel_beacons: %u\n",
+			 le32_to_cpu(general->channel_beacons));
+	pos += scnprintf(buf + pos, bufsz - pos, "num_missed_bcon: %u\n",
+			 le32_to_cpu(general->num_missed_bcon));
+	pos += scnprintf(buf + pos, bufsz - pos,
+			"adc_rx_saturation_time: %u\n",
+			le32_to_cpu(general->adc_rx_saturation_time));
+	pos += scnprintf(buf + pos, bufsz - pos,
+			"ina_detection_search_time: %u\n",
+			le32_to_cpu(general->ina_detection_search_time));
+	pos += scnprintf(buf + pos, bufsz - pos, "beacon_silence_rssi_a: %u\n",
+			 le32_to_cpu(general->beacon_silence_rssi_a));
+	pos += scnprintf(buf + pos, bufsz - pos, "beacon_silence_rssi_b: %u\n",
+			 le32_to_cpu(general->beacon_silence_rssi_b));
+	pos += scnprintf(buf + pos, bufsz - pos, "beacon_silence_rssi_c: %u\n",
+			 le32_to_cpu(general->beacon_silence_rssi_c));
+	pos += scnprintf(buf + pos, bufsz - pos,
+			"interference_data_flag: %u\n",
+			le32_to_cpu(general->interference_data_flag));
+	pos += scnprintf(buf + pos, bufsz - pos, "channel_load: %u\n",
+			 le32_to_cpu(general->channel_load));
+	pos += scnprintf(buf + pos, bufsz - pos, "dsp_false_alarms: %u\n",
+			 le32_to_cpu(general->dsp_false_alarms));
+	pos += scnprintf(buf + pos, bufsz - pos, "beacon_rssi_a: %u\n",
+			 le32_to_cpu(general->beacon_rssi_a));
+	pos += scnprintf(buf + pos, bufsz - pos, "beacon_rssi_b: %u\n",
+			 le32_to_cpu(general->beacon_rssi_b));
+	pos += scnprintf(buf + pos, bufsz - pos, "beacon_rssi_c: %u\n",
+			 le32_to_cpu(general->beacon_rssi_c));
+	pos += scnprintf(buf + pos, bufsz - pos, "beacon_energy_a: %u\n",
+			 le32_to_cpu(general->beacon_energy_a));
+	pos += scnprintf(buf + pos, bufsz - pos, "beacon_energy_b: %u\n",
+			 le32_to_cpu(general->beacon_energy_b));
+	pos += scnprintf(buf + pos, bufsz - pos, "beacon_energy_c: %u\n",
+			 le32_to_cpu(general->beacon_energy_c));
+
+	pos += scnprintf(buf + pos, bufsz - pos, "Statistics_Rx - OFDM_HT:\n");
+	pos += scnprintf(buf + pos, bufsz - pos, "plcp_err: %u\n",
+			 le32_to_cpu(ht->plcp_err));
+	pos += scnprintf(buf + pos, bufsz - pos, "overrun_err: %u\n",
+			 le32_to_cpu(ht->overrun_err));
+	pos += scnprintf(buf + pos, bufsz - pos, "early_overrun_err: %u\n",
+			 le32_to_cpu(ht->early_overrun_err));
+	pos += scnprintf(buf + pos, bufsz - pos, "crc32_good: %u\n",
+			 le32_to_cpu(ht->crc32_good));
+	pos += scnprintf(buf + pos, bufsz - pos, "crc32_err: %u\n",
+			 le32_to_cpu(ht->crc32_err));
+	pos += scnprintf(buf + pos, bufsz - pos, "mh_format_err: %u\n",
+			 le32_to_cpu(ht->mh_format_err));
+	pos += scnprintf(buf + pos, bufsz - pos, "agg_crc32_good: %u\n",
+			 le32_to_cpu(ht->agg_crc32_good));
+	pos += scnprintf(buf + pos, bufsz - pos, "agg_mpdu_cnt: %u\n",
+			 le32_to_cpu(ht->agg_mpdu_cnt));
+	pos += scnprintf(buf + pos, bufsz - pos, "agg_cnt: %u\n",
+			 le32_to_cpu(ht->agg_cnt));
+
+	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+	kfree(buf);
+	return ret;
+}
+
+static ssize_t iwl_dbgfs_ucode_tx_stats_read(struct file *file,
+					char __user *user_buf,
+					size_t count, loff_t *ppos)
+{
+	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+	int pos = 0;
+	char *buf;
+	int bufsz = (sizeof(struct statistics_tx) * 24) + 250;
+	ssize_t ret;
+	struct statistics_tx *tx;
+
+	if (!iwl_is_alive(priv))
+		return -EAGAIN;
+
+	/* make request to uCode to retrieve statistics information */
+	mutex_lock(&priv->mutex);
+	ret = iwl_send_statistics_request(priv, 0);
+	mutex_unlock(&priv->mutex);
+
+	if (ret) {
+		IWL_ERR(priv,
+			"Error sending statistics request: %zd\n", ret);
+		return -EAGAIN;
+	}
+	buf = kzalloc(bufsz, GFP_KERNEL);
+	if (!buf) {
+		IWL_ERR(priv, "Can not allocate Buffer\n");
+		return -ENOMEM;
+	}
+
+	/* the statistic information display here is based on
+	 * the last statistics notification from uCode
+	 * might not reflect the current uCode activity
+	 */
+	tx = &priv->statistics.tx;
+	pos += iwl_dbgfs_statistics_flag(priv, buf, bufsz);
+	pos += scnprintf(buf + pos, bufsz - pos, "Statistics_Tx:\n");
+	pos += scnprintf(buf + pos, bufsz - pos, "preamble: %u\n",
+			 le32_to_cpu(tx->preamble_cnt));
+	pos += scnprintf(buf + pos, bufsz - pos, "rx_detected_cnt: %u\n",
+			 le32_to_cpu(tx->rx_detected_cnt));
+	pos += scnprintf(buf + pos, bufsz - pos, "bt_prio_defer_cnt: %u\n",
+			 le32_to_cpu(tx->bt_prio_defer_cnt));
+	pos += scnprintf(buf + pos, bufsz - pos, "bt_prio_kill_cnt: %u\n",
+			 le32_to_cpu(tx->bt_prio_kill_cnt));
+	pos += scnprintf(buf + pos, bufsz - pos, "few_bytes_cnt: %u\n",
+			 le32_to_cpu(tx->few_bytes_cnt));
+	pos += scnprintf(buf + pos, bufsz - pos, "cts_timeout: %u\n",
+			 le32_to_cpu(tx->cts_timeout));
+	pos += scnprintf(buf + pos, bufsz - pos, "ack_timeout: %u\n",
+			 le32_to_cpu(tx->ack_timeout));
+	pos += scnprintf(buf + pos, bufsz - pos, "expected_ack_cnt: %u\n",
+			 le32_to_cpu(tx->expected_ack_cnt));
+	pos += scnprintf(buf + pos, bufsz - pos, "actual_ack_cnt: %u\n",
+			 le32_to_cpu(tx->actual_ack_cnt));
+	pos += scnprintf(buf + pos, bufsz - pos, "dump_msdu_cnt: %u\n",
+			 le32_to_cpu(tx->dump_msdu_cnt));
+	pos += scnprintf(buf + pos, bufsz - pos,
+			"burst_abort_next_frame_mismatch_cnt: %u\n",
+			le32_to_cpu(tx->burst_abort_next_frame_mismatch_cnt));
+	pos += scnprintf(buf + pos, bufsz - pos,
+			"burst_abort_missing_next_frame_cnt: %u\n",
+			le32_to_cpu(tx->burst_abort_missing_next_frame_cnt));
+	pos += scnprintf(buf + pos, bufsz - pos, "cts_timeout_collision: %u\n",
+			 le32_to_cpu(tx->cts_timeout_collision));
+	pos += scnprintf(buf + pos, bufsz - pos,
+			"ack_or_ba_timeout_collision: %u\n",
+			le32_to_cpu(tx->ack_or_ba_timeout_collision));
+	pos += scnprintf(buf + pos, bufsz - pos, "agg ba_timeout: %u\n",
+			 le32_to_cpu(tx->agg.ba_timeout));
+	pos += scnprintf(buf + pos, bufsz - pos,
+			"agg ba_reschedule_frames: %u\n",
+			le32_to_cpu(tx->agg.ba_reschedule_frames));
+	pos += scnprintf(buf + pos, bufsz - pos,
+			"agg scd_query_agg_frame_cnt: %u\n",
+			le32_to_cpu(tx->agg.scd_query_agg_frame_cnt));
+	pos += scnprintf(buf + pos, bufsz - pos, "agg scd_query_no_agg: %u\n",
+			 le32_to_cpu(tx->agg.scd_query_no_agg));
+	pos += scnprintf(buf + pos, bufsz - pos, "agg scd_query_agg: %u\n",
+			 le32_to_cpu(tx->agg.scd_query_agg));
+	pos += scnprintf(buf + pos, bufsz - pos,
+			"agg scd_query_mismatch: %u\n",
+			le32_to_cpu(tx->agg.scd_query_mismatch));
+	pos += scnprintf(buf + pos, bufsz - pos, "agg frame_not_ready: %u\n",
+			 le32_to_cpu(tx->agg.frame_not_ready));
+	pos += scnprintf(buf + pos, bufsz - pos, "agg underrun: %u\n",
+			 le32_to_cpu(tx->agg.underrun));
+	pos += scnprintf(buf + pos, bufsz - pos, "agg bt_prio_kill: %u\n",
+			 le32_to_cpu(tx->agg.bt_prio_kill));
+	pos += scnprintf(buf + pos, bufsz - pos, "agg rx_ba_rsp_cnt: %u\n",
+			 le32_to_cpu(tx->agg.rx_ba_rsp_cnt));
+
+	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+	kfree(buf);
+	return ret;
+}
+
+static ssize_t iwl_dbgfs_ucode_general_stats_read(struct file *file,
+					char __user *user_buf,
+					size_t count, loff_t *ppos)
+{
+	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+	int pos = 0;
+	char *buf;
+	int bufsz = sizeof(struct statistics_general) * 4 + 250;
+	ssize_t ret;
+	struct statistics_general *general;
+	struct statistics_dbg *dbg;
+	struct statistics_div *div;
+
+	if (!iwl_is_alive(priv))
+		return -EAGAIN;
+
+	/* make request to uCode to retrieve statistics information */
+	mutex_lock(&priv->mutex);
+	ret = iwl_send_statistics_request(priv, 0);
+	mutex_unlock(&priv->mutex);
+
+	if (ret) {
+		IWL_ERR(priv,
+			"Error sending statistics request: %zd\n", ret);
+		return -EAGAIN;
+	}
+	buf = kzalloc(bufsz, GFP_KERNEL);
+	if (!buf) {
+		IWL_ERR(priv, "Can not allocate Buffer\n");
+		return -ENOMEM;
+	}
+
+	/* the statistic information display here is based on
+	 * the last statistics notification from uCode
+	 * might not reflect the current uCode activity
+	 */
+	general = &priv->statistics.general;
+	dbg = &priv->statistics.general.dbg;
+	div = &priv->statistics.general.div;
+	pos += iwl_dbgfs_statistics_flag(priv, buf, bufsz);
+	pos += scnprintf(buf + pos, bufsz - pos, "Statistics_General:\n");
+	pos += scnprintf(buf + pos, bufsz - pos, "temperature: %u\n",
+			 le32_to_cpu(general->temperature));
+	pos += scnprintf(buf + pos, bufsz - pos, "temperature_m: %u\n",
+			 le32_to_cpu(general->temperature_m));
+	pos += scnprintf(buf + pos, bufsz - pos, "burst_check: %u\n",
+			 le32_to_cpu(dbg->burst_check));
+	pos += scnprintf(buf + pos, bufsz - pos, "burst_count: %u\n",
+			 le32_to_cpu(dbg->burst_count));
+	pos += scnprintf(buf + pos, bufsz - pos, "sleep_time: %u\n",
+			 le32_to_cpu(general->sleep_time));
+	pos += scnprintf(buf + pos, bufsz - pos, "slots_out: %u\n",
+			 le32_to_cpu(general->slots_out));
+	pos += scnprintf(buf + pos, bufsz - pos, "slots_idle: %u\n",
+			 le32_to_cpu(general->slots_idle));
+	pos += scnprintf(buf + pos, bufsz - pos, "ttl_timestamp: %u\n",
+			 le32_to_cpu(general->ttl_timestamp));
+	pos += scnprintf(buf + pos, bufsz - pos, "tx_on_a: %u\n",
+			 le32_to_cpu(div->tx_on_a));
+	pos += scnprintf(buf + pos, bufsz - pos, "tx_on_b: %u\n",
+			 le32_to_cpu(div->tx_on_b));
+	pos += scnprintf(buf + pos, bufsz - pos, "exec_time: %u\n",
+			 le32_to_cpu(div->exec_time));
+	pos += scnprintf(buf + pos, bufsz - pos, "probe_time: %u\n",
+			 le32_to_cpu(div->probe_time));
+	pos += scnprintf(buf + pos, bufsz - pos, "rx_enable_counter: %u\n",
+			 le32_to_cpu(general->rx_enable_counter));
+	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+	kfree(buf);
+	return ret;
+}
+
 DEBUGFS_READ_WRITE_FILE_OPS(rx_statistics);
 DEBUGFS_READ_WRITE_FILE_OPS(tx_statistics);
 DEBUGFS_READ_WRITE_FILE_OPS(traffic_log);
 DEBUGFS_READ_FILE_OPS(rx_queue);
 DEBUGFS_READ_FILE_OPS(tx_queue);
+DEBUGFS_READ_FILE_OPS(ucode_rx_stats);
+DEBUGFS_READ_FILE_OPS(ucode_tx_stats);
+DEBUGFS_READ_FILE_OPS(ucode_general_stats);
 
 /*
  * Create the debugfs files and directories
@@ -1001,6 +1400,11 @@ int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
 	DEBUGFS_ADD_FILE(traffic_log, debug);
 	DEBUGFS_ADD_FILE(rx_queue, debug);
 	DEBUGFS_ADD_FILE(tx_queue, debug);
+	if ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) != CSR_HW_REV_TYPE_3945) {
+		DEBUGFS_ADD_FILE(ucode_rx_stats, debug);
+		DEBUGFS_ADD_FILE(ucode_tx_stats, debug);
+		DEBUGFS_ADD_FILE(ucode_general_stats, debug);
+	}
 	DEBUGFS_ADD_BOOL(disable_sensitivity, rf, &priv->disable_sens_cal);
 	DEBUGFS_ADD_BOOL(disable_chain_noise, rf,
 			 &priv->disable_chain_noise_cal);
@@ -1045,6 +1449,14 @@ void iwl_dbgfs_unregister(struct iwl_priv *priv)
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_traffic_log);
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_rx_queue);
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_tx_queue);
+	if ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) != CSR_HW_REV_TYPE_3945) {
+		DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.
+			file_ucode_rx_stats);
+		DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.
+			file_ucode_tx_stats);
+		DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.
+			file_ucode_general_stats);
+	}
 	DEBUGFS_REMOVE(priv->dbgfs->dir_debug);
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_sensitivity);
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_chain_noise);
-- 
cgit v1.2.3


From 5225935b53ce1eafb222c644230d03ad6011d357 Mon Sep 17 00:00:00 2001
From: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Date: Fri, 7 Aug 2009 15:41:43 -0700
Subject: iwlwifi: Display sensitivity and chain noise information

Display sensitivity and chain noise data to help understand the current
environment and RF condition.

The data is feeded by statistics notification and Beacon from uCode;
then used by sensitivity calibration and chain noise calibration to
determine how DSP should react to the environment changes

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-debug.h   |   2 +
 drivers/net/wireless/iwlwifi/iwl-debugfs.c | 149 ++++++++++++++++++++++++++++-
 2 files changed, 150 insertions(+), 1 deletion(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-debug.h b/drivers/net/wireless/iwlwifi/iwl-debug.h
index 18b8cf792130..82befb7ce997 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debug.h
+++ b/drivers/net/wireless/iwlwifi/iwl-debug.h
@@ -103,6 +103,8 @@ struct iwl_debugfs {
 		struct dentry *file_ucode_rx_stats;
 		struct dentry *file_ucode_tx_stats;
 		struct dentry *file_ucode_general_stats;
+		struct dentry *file_sensitivity;
+		struct dentry *file_chain_noise;
 	} dbgfs_debug_files;
 	u32 sram_offset;
 	u32 sram_len;
diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
index 20e4edb36ec4..1ad4ff6bfff7 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
@@ -38,7 +38,7 @@
 #include "iwl-debug.h"
 #include "iwl-core.h"
 #include "iwl-io.h"
-
+#include "iwl-calib.h"
 
 /* create and remove of files */
 #define DEBUGFS_ADD_DIR(name, parent) do {                              \
@@ -1346,6 +1346,145 @@ static ssize_t iwl_dbgfs_ucode_general_stats_read(struct file *file,
 	return ret;
 }
 
+static ssize_t iwl_dbgfs_sensitivity_read(struct file *file,
+					char __user *user_buf,
+					size_t count, loff_t *ppos) {
+
+	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+	int pos = 0;
+	int cnt = 0;
+	char *buf;
+	int bufsz = sizeof(struct iwl_sensitivity_data) * 4 + 100;
+	ssize_t ret;
+	struct iwl_sensitivity_data *data;
+
+	data = &priv->sensitivity_data;
+	buf = kzalloc(bufsz, GFP_KERNEL);
+	if (!buf) {
+		IWL_ERR(priv, "Can not allocate Buffer\n");
+		return -ENOMEM;
+	}
+
+	pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm:\t\t\t %u\n",
+			data->auto_corr_ofdm);
+	pos += scnprintf(buf + pos, bufsz - pos,
+			"auto_corr_ofdm_mrc:\t\t %u\n",
+			data->auto_corr_ofdm_mrc);
+	pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm_x1:\t\t %u\n",
+			data->auto_corr_ofdm_x1);
+	pos += scnprintf(buf + pos, bufsz - pos,
+			"auto_corr_ofdm_mrc_x1:\t\t %u\n",
+			data->auto_corr_ofdm_mrc_x1);
+	pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck:\t\t\t %u\n",
+			data->auto_corr_cck);
+	pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck_mrc:\t\t %u\n",
+			data->auto_corr_cck_mrc);
+	pos += scnprintf(buf + pos, bufsz - pos,
+			"last_bad_plcp_cnt_ofdm:\t\t %u\n",
+			data->last_bad_plcp_cnt_ofdm);
+	pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_ofdm:\t\t %u\n",
+			data->last_fa_cnt_ofdm);
+	pos += scnprintf(buf + pos, bufsz - pos,
+			"last_bad_plcp_cnt_cck:\t\t %u\n",
+			data->last_bad_plcp_cnt_cck);
+	pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_cck:\t\t %u\n",
+			data->last_fa_cnt_cck);
+	pos += scnprintf(buf + pos, bufsz - pos, "nrg_curr_state:\t\t\t %u\n",
+			data->nrg_curr_state);
+	pos += scnprintf(buf + pos, bufsz - pos, "nrg_prev_state:\t\t\t %u\n",
+			data->nrg_prev_state);
+	pos += scnprintf(buf + pos, bufsz - pos, "nrg_value:\t\t\t");
+	for (cnt = 0; cnt < 10; cnt++) {
+		pos += scnprintf(buf + pos, bufsz - pos, " %u",
+				data->nrg_value[cnt]);
+	}
+	pos += scnprintf(buf + pos, bufsz - pos, "\n");
+	pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_rssi:\t\t");
+	for (cnt = 0; cnt < NRG_NUM_PREV_STAT_L; cnt++) {
+		pos += scnprintf(buf + pos, bufsz - pos, " %u",
+				data->nrg_silence_rssi[cnt]);
+	}
+	pos += scnprintf(buf + pos, bufsz - pos, "\n");
+	pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_ref:\t\t %u\n",
+			data->nrg_silence_ref);
+	pos += scnprintf(buf + pos, bufsz - pos, "nrg_energy_idx:\t\t\t %u\n",
+			data->nrg_energy_idx);
+	pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_idx:\t\t %u\n",
+			data->nrg_silence_idx);
+	pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_cck:\t\t\t %u\n",
+			data->nrg_th_cck);
+	pos += scnprintf(buf + pos, bufsz - pos,
+			"nrg_auto_corr_silence_diff:\t %u\n",
+			data->nrg_auto_corr_silence_diff);
+	pos += scnprintf(buf + pos, bufsz - pos, "num_in_cck_no_fa:\t\t %u\n",
+			data->num_in_cck_no_fa);
+	pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_ofdm:\t\t\t %u\n",
+			data->nrg_th_ofdm);
+
+	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+	kfree(buf);
+	return ret;
+}
+
+
+static ssize_t iwl_dbgfs_chain_noise_read(struct file *file,
+					char __user *user_buf,
+					size_t count, loff_t *ppos) {
+
+	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+	int pos = 0;
+	int cnt = 0;
+	char *buf;
+	int bufsz = sizeof(struct iwl_chain_noise_data) * 4 + 100;
+	ssize_t ret;
+	struct iwl_chain_noise_data *data;
+
+	data = &priv->chain_noise_data;
+	buf = kzalloc(bufsz, GFP_KERNEL);
+	if (!buf) {
+		IWL_ERR(priv, "Can not allocate Buffer\n");
+		return -ENOMEM;
+	}
+
+	pos += scnprintf(buf + pos, bufsz - pos, "active_chains:\t\t\t %u\n",
+			data->active_chains);
+	pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_a:\t\t\t %u\n",
+			data->chain_noise_a);
+	pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_b:\t\t\t %u\n",
+			data->chain_noise_b);
+	pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_c:\t\t\t %u\n",
+			data->chain_noise_c);
+	pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_a:\t\t\t %u\n",
+			data->chain_signal_a);
+	pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_b:\t\t\t %u\n",
+			data->chain_signal_b);
+	pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_c:\t\t\t %u\n",
+			data->chain_signal_c);
+	pos += scnprintf(buf + pos, bufsz - pos, "beacon_count:\t\t\t %u\n",
+			data->beacon_count);
+
+	pos += scnprintf(buf + pos, bufsz - pos, "disconn_array:\t\t\t");
+	for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
+		pos += scnprintf(buf + pos, bufsz - pos, " %u",
+				data->disconn_array[cnt]);
+	}
+	pos += scnprintf(buf + pos, bufsz - pos, "\n");
+	pos += scnprintf(buf + pos, bufsz - pos, "delta_gain_code:\t\t");
+	for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
+		pos += scnprintf(buf + pos, bufsz - pos, " %u",
+				data->delta_gain_code[cnt]);
+	}
+	pos += scnprintf(buf + pos, bufsz - pos, "\n");
+	pos += scnprintf(buf + pos, bufsz - pos, "radio_write:\t\t\t %u\n",
+			data->radio_write);
+	pos += scnprintf(buf + pos, bufsz - pos, "state:\t\t\t\t %u\n",
+			data->state);
+
+	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+	kfree(buf);
+	return ret;
+}
+
 DEBUGFS_READ_WRITE_FILE_OPS(rx_statistics);
 DEBUGFS_READ_WRITE_FILE_OPS(tx_statistics);
 DEBUGFS_READ_WRITE_FILE_OPS(traffic_log);
@@ -1354,6 +1493,8 @@ DEBUGFS_READ_FILE_OPS(tx_queue);
 DEBUGFS_READ_FILE_OPS(ucode_rx_stats);
 DEBUGFS_READ_FILE_OPS(ucode_tx_stats);
 DEBUGFS_READ_FILE_OPS(ucode_general_stats);
+DEBUGFS_READ_FILE_OPS(sensitivity);
+DEBUGFS_READ_FILE_OPS(chain_noise);
 
 /*
  * Create the debugfs files and directories
@@ -1404,6 +1545,8 @@ int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
 		DEBUGFS_ADD_FILE(ucode_rx_stats, debug);
 		DEBUGFS_ADD_FILE(ucode_tx_stats, debug);
 		DEBUGFS_ADD_FILE(ucode_general_stats, debug);
+		DEBUGFS_ADD_FILE(sensitivity, debug);
+		DEBUGFS_ADD_FILE(chain_noise, debug);
 	}
 	DEBUGFS_ADD_BOOL(disable_sensitivity, rf, &priv->disable_sens_cal);
 	DEBUGFS_ADD_BOOL(disable_chain_noise, rf,
@@ -1456,6 +1599,10 @@ void iwl_dbgfs_unregister(struct iwl_priv *priv)
 			file_ucode_tx_stats);
 		DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.
 			file_ucode_general_stats);
+		DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.
+			file_sensitivity);
+		DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.
+			file_chain_noise);
 	}
 	DEBUGFS_REMOVE(priv->dbgfs->dir_debug);
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_sensitivity);
-- 
cgit v1.2.3


From c03ea16285bf142172f9816b8a1f5c43bb4b4405 Mon Sep 17 00:00:00 2001
From: Reinette Chatre <reinette.chatre@intel.com>
Date: Fri, 7 Aug 2009 15:41:44 -0700
Subject: iwlwifi: revert uCode Alive notification with timeout

commit "iwlwifi: uCode Alive notification with timeout" introduced a more
reliable mechanism for ucode loading. Unfortunately we hit a problem with
it frequently enough to make a 4965 unusable. The problem can be seen in
debug log below. What this code attempts is to set runtime ucode up to
load, start a timer to wait for the alive response from runtime ucode, and
if it times out it tries again. As can be seen below we receive the alive
response and wake the waiting task _before_ the tasks starts waiting. The
task thus times out as the alive response is not received while it is
waiting for it and it restarts the device. This starts the cycle all over
again.

[29739.000819] ieee80211 phy0: U iwl_mac_start enter
[29739.005751] ieee80211 phy0: U iwl_prepare_card_hw iwl_prepare_card_hw enter
[29739.012798] ieee80211 phy0: U iwl_set_hw_ready hardware ready
[29739.057200] ieee80211 phy0: U iwl4965_load_bsm Begin load bsm
[29739.063366] ieee80211 phy0: U iwl4965_verify_bsm Begin verify bsm
[29739.072485] ieee80211 phy0: U iwl4965_verify_bsm BSM bootstrap uCode image OK
[29739.079671] ieee80211 phy0: U iwl4965_load_bsm BSM write complete, poll 0 iterations
[29739.257019] ieee80211 phy0: I iwl_rx_reply_alive Alive ucode status 0x00000001 revision 0x1 0x9
[29739.260964] ieee80211 phy0: I iwl_rx_reply_alive Initialization Alive received.
[29739.260964] ieee80211 phy0: U __iwl_up iwlagn is coming up
[29739.278571] ieee80211 phy0: U iwl_mac_start Start UP work done.
[29739.284509] ieee80211 phy0: U iwlcore_verify_inst_sparse ucode inst image size is 788
[29739.292432] ieee80211 phy0: U iwlcore_verify_inst_sparse ucode inst image size is 10312
[29739.302004] ieee80211 phy0: U iwl_verify_ucode Initialize uCode is good in inst SRAM
[29739.309746] ieee80211 phy0: U iwl4965_hw_get_temperature Running temperature calibration
[29739.317833] ieee80211 phy0: U iwl4965_hw_get_temperature Calib values R[1-3]: -36 13522 -13496 R4: -2726
[29739.327337] ieee80211 phy0: U iwl4965_hw_get_temperature Calibrated temperature: 310K, 37C
[29739.335598] ieee80211 phy0: U iwl4965_init_alive_start Initialization Alive received.
[29739.343477] ieee80211 phy0: U iwl4965_set_ucode_ptrs Runtime uCode pointers are set.
[29739.351283] ieee80211 phy0: I iwl_rx_reply_alive Alive ucode status 0x00000001 revision 0x1 0x0
[29739.355210] ieee80211 phy0: I iwl_rx_reply_alive Runtime Alive received.
[29739.366731] iwlagn 0000:03:00.0: Runtime uCode already alive? Waiting for alive anyway
[29743.284110] iwlagn 0000:03:00.0: START_ALIVE timeout after 4000ms.
[29743.290337] ieee80211 phy0: U iwl_mac_add_interface enter: type 2
[29744.364089] iwlagn 0000:03:00.0: Runtime timeout after 5000ms
[29744.370882] ieee80211 phy0: U iwl_alive_start Runtime Alive received.
[29744.377347] ieee80211 phy0: U iwlcore_verify_inst_sparse ucode inst image size is 788
[29744.385287] ieee80211 phy0: U iwlcore_verify_inst_sparse ucode inst image size is 10312
[29744.393397] ieee80211 phy0: U iwlcore_verify_inst_sparse ucode inst image size is 94720
[29744.415835] ieee80211 phy0: U iwl_verify_ucode Runtime uCode is good in inst SRAM

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-4965.c | 26 +----------------
 drivers/net/wireless/iwlwifi/iwl-agn.c  | 50 ---------------------------------
 drivers/net/wireless/iwlwifi/iwl-core.c | 39 ++++++-------------------
 drivers/net/wireless/iwlwifi/iwl-core.h |  2 --
 drivers/net/wireless/iwlwifi/iwl-dev.h  |  2 --
 5 files changed, 10 insertions(+), 109 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c
index f02023eea41c..e427a8937ed8 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965.c
+++ b/drivers/net/wireless/iwlwifi/iwl-4965.c
@@ -146,7 +146,7 @@ static int iwl4965_load_bsm(struct iwl_priv *priv)
 
 	IWL_DEBUG_INFO(priv, "Begin load bsm\n");
 
-	priv->ucode_type = UCODE_INIT;
+	priv->ucode_type = UCODE_RT;
 
 	/* make sure bootstrap program is no larger than BSM's SRAM size */
 	if (len > IWL49_MAX_BSM_SIZE)
@@ -256,8 +256,6 @@ static int iwl4965_set_ucode_ptrs(struct iwl_priv *priv)
 */
 static void iwl4965_init_alive_start(struct iwl_priv *priv)
 {
-	int ret;
-
 	/* Check alive response for "valid" sign from uCode */
 	if (priv->card_alive_init.is_valid != UCODE_VALID_OK) {
 		/* We had an error bringing up the hardware, so take it
@@ -289,28 +287,6 @@ static void iwl4965_init_alive_start(struct iwl_priv *priv)
 		IWL_DEBUG_INFO(priv, "Couldn't set up uCode pointers.\n");
 		goto restart;
 	}
-	priv->ucode_type = UCODE_RT;
-	if (test_bit(STATUS_RT_UCODE_ALIVE, &priv->status)) {
-		IWL_WARN(priv, "Runtime uCode already alive? "
-			"Waiting for alive anyway\n");
-		clear_bit(STATUS_RT_UCODE_ALIVE, &priv->status);
-	}
-	ret = wait_event_interruptible_timeout(
-			priv->wait_command_queue,
-			test_bit(STATUS_RT_UCODE_ALIVE, &priv->status),
-			UCODE_ALIVE_TIMEOUT);
-	if (!ret) {
-		/* FIXME: if STATUS_RT_UCODE_ALIVE timeout
-		 * go back to restart the download Init uCode again
-		 * this might cause to trap in the restart loop
-		 */
-		priv->ucode_type = UCODE_NONE;
-		if (!test_bit(STATUS_RT_UCODE_ALIVE, &priv->status)) {
-			IWL_ERR(priv, "Runtime timeout after %dms\n",
-				jiffies_to_msecs(UCODE_ALIVE_TIMEOUT));
-			goto restart;
-		}
-	}
 	return;
 
 restart:
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index c9a1aacb2437..319df4ab7f13 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -533,16 +533,12 @@ static void iwl_rx_reply_alive(struct iwl_priv *priv,
 
 	if (palive->ver_subtype == INITIALIZE_SUBTYPE) {
 		IWL_DEBUG_INFO(priv, "Initialization Alive received.\n");
-		set_bit(STATUS_INIT_UCODE_ALIVE, &priv->status);
-		wake_up_interruptible(&priv->wait_command_queue);
 		memcpy(&priv->card_alive_init,
 		       &pkt->u.alive_frame,
 		       sizeof(struct iwl_init_alive_resp));
 		pwork = &priv->init_alive_start;
 	} else {
 		IWL_DEBUG_INFO(priv, "Runtime Alive received.\n");
-		set_bit(STATUS_RT_UCODE_ALIVE, &priv->status);
-		wake_up_interruptible(&priv->wait_command_queue);
 		memcpy(&priv->card_alive, &pkt->u.alive_frame,
 		       sizeof(struct iwl_alive_resp));
 		pwork = &priv->alive_start;
@@ -1784,7 +1780,6 @@ static int __iwl_up(struct iwl_priv *priv)
 {
 	int i;
 	int ret;
-	unsigned long status;
 
 	if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
 		IWL_WARN(priv, "Exit pending; will not bring the NIC up\n");
@@ -1862,51 +1857,6 @@ static int __iwl_up(struct iwl_priv *priv)
 		/* start card; "initialize" will load runtime ucode */
 		iwl_nic_start(priv);
 
-		/* Just finish download Init or Runtime uCode image to device
-		 * now we wait here for uCode send REPLY_ALIVE notification
-		 * to indicate uCode is ready.
-		 * 1) For Init uCode image, all iwlagn devices should wait here
-		 * on STATUS_INIT_UCODE_ALIVE status bit; if timeout before
-		 * receive the REPLY_ALIVE notification, go back and try to
-		 * download the Init uCode image again.
-		 * 2) For Runtime uCode image, all iwlagn devices except 4965
-		 * wait here on STATUS_RT_UCODE_ALIVE status bit; if
-		 * timeout before receive the REPLY_ALIVE notification, go back
-		 * and download the Runtime uCode image again.
-		 * 3) For 4965 Runtime uCode, it will not go through this path,
-		 * need to wait for STATUS_RT_UCODE_ALIVE status bit in
-		 * iwl4965_init_alive_start() function; if timeout, need to
-		 * restart and download Init uCode image.
-		 */
-		if (priv->ucode_type == UCODE_INIT)
-			status = STATUS_INIT_UCODE_ALIVE;
-		else
-			status = STATUS_RT_UCODE_ALIVE;
-		if (test_bit(status, &priv->status)) {
-			IWL_WARN(priv,
-				"%s uCode already alive? "
-				"Waiting for alive anyway\n",
-				(status == STATUS_INIT_UCODE_ALIVE)
-				? "INIT" : "Runtime");
-			clear_bit(status, &priv->status);
-		}
-		ret = wait_event_interruptible_timeout(
-				priv->wait_command_queue,
-				test_bit(status, &priv->status),
-				UCODE_ALIVE_TIMEOUT);
-		if (!ret) {
-			if (!test_bit(status, &priv->status)) {
-				priv->ucode_type =
-					(status == STATUS_INIT_UCODE_ALIVE)
-					? UCODE_NONE : UCODE_INIT;
-				IWL_ERR(priv,
-					"%s timeout after %dms\n",
-					(status == STATUS_INIT_UCODE_ALIVE)
-					? "INIT" : "Runtime",
-					jiffies_to_msecs(UCODE_ALIVE_TIMEOUT));
-				continue;
-			}
-		}
 		IWL_DEBUG_INFO(priv, DRV_NAME " is coming up\n");
 
 		return 0;
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 202bc3985a46..79170a9037a1 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -1343,17 +1343,10 @@ static void iwl_dump_nic_error_log(struct iwl_priv *priv)
 	u32 desc, time, count, base, data1;
 	u32 blink1, blink2, ilink1, ilink2;
 
-	switch (priv->ucode_type) {
-	case UCODE_RT:
-		base = le32_to_cpu(priv->card_alive.error_event_table_ptr);
-		break;
-	case UCODE_INIT:
+	if (priv->ucode_type == UCODE_INIT)
 		base = le32_to_cpu(priv->card_alive_init.error_event_table_ptr);
-		break;
-	default:
-		IWL_ERR(priv, "uCode image not available\n");
-		return;
-	}
+	else
+		base = le32_to_cpu(priv->card_alive.error_event_table_ptr);
 
 	if (!priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) {
 		IWL_ERR(priv, "Not valid error log pointer 0x%08X\n", base);
@@ -1405,17 +1398,10 @@ static void iwl_print_event_log(struct iwl_priv *priv, u32 start_idx,
 
 	if (num_events == 0)
 		return;
-	switch (priv->ucode_type) {
-	case UCODE_RT:
-		base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
-		break;
-	case UCODE_INIT:
+	if (priv->ucode_type == UCODE_INIT)
 		base = le32_to_cpu(priv->card_alive_init.log_event_table_ptr);
-		break;
-	default:
-		IWL_ERR(priv, "uCode image not available\n");
-		return;
-	}
+	else
+		base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
 
 	if (mode == 0)
 		event_size = 2 * sizeof(u32);
@@ -1452,17 +1438,10 @@ void iwl_dump_nic_event_log(struct iwl_priv *priv)
 	u32 next_entry; /* index of next entry to be written by uCode */
 	u32 size;       /* # entries that we'll print */
 
-	switch (priv->ucode_type) {
-	case UCODE_RT:
-		base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
-		break;
-	case UCODE_INIT:
+	if (priv->ucode_type == UCODE_INIT)
 		base = le32_to_cpu(priv->card_alive_init.log_event_table_ptr);
-		break;
-	default:
-		IWL_ERR(priv, "uCode image not available\n");
-		return;
-	}
+	else
+		base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
 
 	if (!priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) {
 		IWL_ERR(priv, "Invalid event log pointer 0x%08X\n", base);
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h
index fc096b929ee3..ea8748dd675d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.h
+++ b/drivers/net/wireless/iwlwifi/iwl-core.h
@@ -547,8 +547,6 @@ void iwlcore_free_geos(struct iwl_priv *priv);
 #define STATUS_POWER_PMI	16
 #define STATUS_FW_ERROR		17
 #define STATUS_MODE_PENDING	18
-#define STATUS_INIT_UCODE_ALIVE	19
-#define STATUS_RT_UCODE_ALIVE	20
 
 
 static inline int iwl_is_ready(struct iwl_priv *priv)
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index dcf9d5763237..61f952330a89 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -823,8 +823,6 @@ struct iwl_calib_result {
 	size_t buf_len;
 };
 
-#define UCODE_ALIVE_TIMEOUT	(5 * HZ)
-
 enum ucode_type {
 	UCODE_NONE = 0,
 	UCODE_INIT,
-- 
cgit v1.2.3


From a28027cd7f169edc399fe4b76d3a33b0203049a1 Mon Sep 17 00:00:00 2001
From: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Date: Fri, 7 Aug 2009 15:41:45 -0700
Subject: iwlwifi: fix thermal throttling locking problem

Move all the thermal throttling functions to background task to make
sure do not change power and rx chain in interrupt handler.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-dev.h   |  3 ++
 drivers/net/wireless/iwlwifi/iwl-power.c | 57 +++++++++++++++++++++++++++++---
 2 files changed, 56 insertions(+), 4 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index 61f952330a89..35d07a813252 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -1197,6 +1197,9 @@ struct iwl_priv {
 	struct work_struct report_work;
 	struct work_struct request_scan;
 	struct work_struct beacon_update;
+	struct work_struct tt_work;
+	struct work_struct ct_enter;
+	struct work_struct ct_exit;
 
 	struct tasklet_struct irq_tasklet;
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-power.c b/drivers/net/wireless/iwlwifi/iwl-power.c
index 594b5c2540b5..9c05af77f9e7 100644
--- a/drivers/net/wireless/iwlwifi/iwl-power.c
+++ b/drivers/net/wireless/iwlwifi/iwl-power.c
@@ -481,6 +481,7 @@ static void iwl_legacy_tt_handler(struct iwl_priv *priv, s32 temp)
 			tt->tt_power_mode = IWL_POWER_INDEX_5;
 			break;
 		}
+		mutex_lock(&priv->mutex);
 		if (iwl_power_update_mode(priv, true)) {
 			/* TT state not updated
 			 * try again during next temperature read
@@ -499,6 +500,7 @@ static void iwl_legacy_tt_handler(struct iwl_priv *priv, s32 temp)
 			IWL_DEBUG_POWER(priv, "Power Index change to %u\n",
 					tt->tt_power_mode);
 		}
+		mutex_unlock(&priv->mutex);
 	}
 }
 
@@ -609,6 +611,7 @@ static void iwl_advance_tt_handler(struct iwl_priv *priv, s32 temp)
 			 * in case get disabled before */
 			iwl_set_rxon_ht(priv, &priv->current_ht_config);
 		}
+		mutex_lock(&priv->mutex);
 		if (iwl_power_update_mode(priv, true)) {
 			/* TT state not updated
 			 * try again during next temperature read
@@ -631,6 +634,7 @@ static void iwl_advance_tt_handler(struct iwl_priv *priv, s32 temp)
 				iwl_perform_ct_kill_task(priv, false);
 			}
 		}
+		mutex_unlock(&priv->mutex);
 	}
 }
 
@@ -644,13 +648,17 @@ static void iwl_advance_tt_handler(struct iwl_priv *priv, s32 temp)
  * for advance mode
  * pass CT_KILL_THRESHOLD+1 to make sure move into IWL_TI_CT_KILL state
  */
-void iwl_tt_enter_ct_kill(struct iwl_priv *priv)
+static void iwl_bg_ct_enter(struct work_struct *work)
 {
+	struct iwl_priv *priv = container_of(work, struct iwl_priv, ct_enter);
 	struct iwl_tt_mgmt *tt = &priv->power_data.tt;
 
 	if (test_bit(STATUS_EXIT_PENDING, &priv->status))
 		return;
 
+	if (!iwl_is_ready(priv))
+		return;
+
 	if (tt->state != IWL_TI_CT_KILL) {
 		IWL_ERR(priv, "Device reached critical temperature "
 			      "- ucode going to sleep!\n");
@@ -662,20 +670,23 @@ void iwl_tt_enter_ct_kill(struct iwl_priv *priv)
 					       CT_KILL_THRESHOLD + 1);
 	}
 }
-EXPORT_SYMBOL(iwl_tt_enter_ct_kill);
 
 /* Card State Notification indicated out of critical temperature
  * since Card State Notification will not provide any temperature reading
  * so pass the IWL_REDUCED_PERFORMANCE_THRESHOLD_2 temperature
  * to iwl_legacy_tt_handler() to get out of IWL_CT_KILL state
  */
-void iwl_tt_exit_ct_kill(struct iwl_priv *priv)
+static void iwl_bg_ct_exit(struct work_struct *work)
 {
+	struct iwl_priv *priv = container_of(work, struct iwl_priv, ct_exit);
 	struct iwl_tt_mgmt *tt = &priv->power_data.tt;
 
 	if (test_bit(STATUS_EXIT_PENDING, &priv->status))
 		return;
 
+	if (!iwl_is_ready(priv))
+		return;
+
 	/* stop ct_kill_exit_tm timer */
 	del_timer_sync(&priv->power_data.ct_kill_exit_tm);
 
@@ -690,10 +701,30 @@ void iwl_tt_exit_ct_kill(struct iwl_priv *priv)
 			iwl_advance_tt_handler(priv, CT_KILL_EXIT_THRESHOLD);
 	}
 }
+
+void iwl_tt_enter_ct_kill(struct iwl_priv *priv)
+{
+	if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+		return;
+
+	IWL_DEBUG_POWER(priv, "Queueing critical temperature enter.\n");
+	queue_work(priv->workqueue, &priv->ct_enter);
+}
+EXPORT_SYMBOL(iwl_tt_enter_ct_kill);
+
+void iwl_tt_exit_ct_kill(struct iwl_priv *priv)
+{
+	if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+		return;
+
+	IWL_DEBUG_POWER(priv, "Queueing critical temperature exit.\n");
+	queue_work(priv->workqueue, &priv->ct_exit);
+}
 EXPORT_SYMBOL(iwl_tt_exit_ct_kill);
 
-void iwl_tt_handler(struct iwl_priv *priv)
+static void iwl_bg_tt_work(struct work_struct *work)
 {
+	struct iwl_priv *priv = container_of(work, struct iwl_priv, tt_work);
 	s32 temp = priv->temperature; /* degrees CELSIUS except 4965 */
 
 	if (test_bit(STATUS_EXIT_PENDING, &priv->status))
@@ -707,6 +738,15 @@ void iwl_tt_handler(struct iwl_priv *priv)
 	else
 		iwl_advance_tt_handler(priv, temp);
 }
+
+void iwl_tt_handler(struct iwl_priv *priv)
+{
+	if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+		return;
+
+	IWL_DEBUG_POWER(priv, "Queueing thermal throttling work.\n");
+	queue_work(priv->workqueue, &priv->tt_work);
+}
 EXPORT_SYMBOL(iwl_tt_handler);
 
 /* Thermal throttling initialization
@@ -731,6 +771,12 @@ void iwl_tt_initialize(struct iwl_priv *priv)
 	init_timer(&priv->power_data.ct_kill_exit_tm);
 	priv->power_data.ct_kill_exit_tm.data = (unsigned long)priv;
 	priv->power_data.ct_kill_exit_tm.function = iwl_tt_check_exit_ct_kill;
+
+	/* setup deferred ct kill work */
+	INIT_WORK(&priv->tt_work, iwl_bg_tt_work);
+	INIT_WORK(&priv->ct_enter, iwl_bg_ct_enter);
+	INIT_WORK(&priv->ct_exit, iwl_bg_ct_exit);
+
 	switch (priv->hw_rev & CSR_HW_REV_TYPE_MSK) {
 	case CSR_HW_REV_TYPE_6x00:
 	case CSR_HW_REV_TYPE_6x50:
@@ -782,6 +828,9 @@ void iwl_tt_exit(struct iwl_priv *priv)
 
 	/* stop ct_kill_exit_tm timer if activated */
 	del_timer_sync(&priv->power_data.ct_kill_exit_tm);
+	cancel_work_sync(&priv->tt_work);
+	cancel_work_sync(&priv->ct_enter);
+	cancel_work_sync(&priv->ct_exit);
 
 	if (priv->power_data.adv_tt) {
 		/* free advance thermal throttling memory */
-- 
cgit v1.2.3


From ee9f29894fc3819c1bd639fc3a886326bb809266 Mon Sep 17 00:00:00 2001
From: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Date: Fri, 7 Aug 2009 15:41:46 -0700
Subject: iwlwifi: fix legacy thermal throttling power index

For legacy thermal throttling, set the new Thermal Throttling
state and change power index when thermal throttling manager detects
temperature changed. The current implementation sets the state to the
previous Thermal Throttling state, which causes system to enter wrong
power index. The worse case, it will trying to set the
lower power index when device reach critical temperature, it will cuase
issue for both system and the device.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-power.c | 25 +++++++++++++------------
 1 file changed, 13 insertions(+), 12 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-power.c b/drivers/net/wireless/iwlwifi/iwl-power.c
index 9c05af77f9e7..bd97a0da1cd5 100644
--- a/drivers/net/wireless/iwlwifi/iwl-power.c
+++ b/drivers/net/wireless/iwlwifi/iwl-power.c
@@ -425,7 +425,7 @@ static void iwl_perform_ct_kill_task(struct iwl_priv *priv,
 static void iwl_legacy_tt_handler(struct iwl_priv *priv, s32 temp)
 {
 	struct iwl_tt_mgmt *tt = &priv->power_data.tt;
-	enum iwl_tt_state new_state;
+	enum iwl_tt_state old_state;
 	struct iwl_power_mgr *setting = &priv->power_data;
 
 #ifdef CONFIG_IWLWIFI_DEBUG
@@ -438,26 +438,27 @@ static void iwl_legacy_tt_handler(struct iwl_priv *priv, s32 temp)
 			(temp - tt->tt_previous_temp));
 	}
 #endif
+	old_state = tt->state;
 	/* in Celsius */
 	if (temp >= IWL_MINIMAL_POWER_THRESHOLD)
-		new_state = IWL_TI_CT_KILL;
+		tt->state = IWL_TI_CT_KILL;
 	else if (temp >= IWL_REDUCED_PERFORMANCE_THRESHOLD_2)
-		new_state = IWL_TI_2;
+		tt->state = IWL_TI_2;
 	else if (temp >= IWL_REDUCED_PERFORMANCE_THRESHOLD_1)
-		new_state = IWL_TI_1;
+		tt->state = IWL_TI_1;
 	else
-		new_state = IWL_TI_0;
+		tt->state = IWL_TI_0;
 
 #ifdef CONFIG_IWLWIFI_DEBUG
 	tt->tt_previous_temp = temp;
 #endif
-	if (tt->state != new_state) {
-		if (tt->state == IWL_TI_0) {
+	if (tt->state != old_state) {
+		if (old_state == IWL_TI_0) {
 			tt->sys_power_mode = setting->power_mode;
 			IWL_DEBUG_POWER(priv, "current power mode: %u\n",
 				setting->power_mode);
 		}
-		switch (new_state) {
+		switch (tt->state) {
 		case IWL_TI_0:
 			/* when system ready to go back to IWL_TI_0 state
 			 * using system power mode instead of TT power mode
@@ -486,15 +487,15 @@ static void iwl_legacy_tt_handler(struct iwl_priv *priv, s32 temp)
 			/* TT state not updated
 			 * try again during next temperature read
 			 */
+			tt->state = old_state;
 			IWL_ERR(priv, "Cannot update power mode, "
 					"TT state not updated\n");
 		} else {
-			if (new_state == IWL_TI_CT_KILL)
+			if (tt->state == IWL_TI_CT_KILL)
 				iwl_perform_ct_kill_task(priv, true);
-			else if (tt->state == IWL_TI_CT_KILL &&
-				 new_state != IWL_TI_CT_KILL)
+			else if (old_state == IWL_TI_CT_KILL &&
+				 tt->state != IWL_TI_CT_KILL)
 				iwl_perform_ct_kill_task(priv, false);
-			tt->state = new_state;
 			IWL_DEBUG_POWER(priv, "Temperature state changed %u\n",
 					tt->state);
 			IWL_DEBUG_POWER(priv, "Power Index change to %u\n",
-- 
cgit v1.2.3


From 3a780d25428a0a391a8ba6c888cf4e89ac3fdbb1 Mon Sep 17 00:00:00 2001
From: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Date: Fri, 7 Aug 2009 15:41:47 -0700
Subject: iwlwifi: handle the case when set power fail

Modify the power update function, when driver fail to set the power, it
should not continue move forward and try to change the rx chain
configuration.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-power.c | 21 ++++++++++++---------
 1 file changed, 12 insertions(+), 9 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-power.c b/drivers/net/wireless/iwlwifi/iwl-power.c
index bd97a0da1cd5..9e8916d15ecf 100644
--- a/drivers/net/wireless/iwlwifi/iwl-power.c
+++ b/drivers/net/wireless/iwlwifi/iwl-power.c
@@ -282,18 +282,21 @@ int iwl_power_update_mode(struct iwl_priv *priv, bool force)
 			cmd.flags |= IWL_POWER_FAST_PD;
 
 		ret = iwl_set_power(priv, &cmd);
-
-		if (final_mode == IWL_POWER_MODE_CAM)
-			clear_bit(STATUS_POWER_PMI, &priv->status);
-
-		if (priv->cfg->ops->lib->update_chain_flags && update_chains)
-			priv->cfg->ops->lib->update_chain_flags(priv);
-		else
-			IWL_DEBUG_POWER(priv, "Cannot update the power, chain noise "
+		if (!ret) {
+			if (final_mode == IWL_POWER_MODE_CAM)
+				clear_bit(STATUS_POWER_PMI, &priv->status);
+
+			if (priv->cfg->ops->lib->update_chain_flags &&
+			    update_chains)
+				priv->cfg->ops->lib->update_chain_flags(priv);
+			else
+				IWL_DEBUG_POWER(priv,
+					"Cannot update the power, chain noise "
 					"calibration running: %d\n",
 					priv->chain_noise_data.state);
-		if (!ret)
 			setting->power_mode = final_mode;
+		} else
+			IWL_ERR(priv, "set power fail, ret = %d", ret);
 	}
 
 	return ret;
-- 
cgit v1.2.3


From 3ad3b92a5517c043ef30e4b95c4c39a35bbc36be Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Fri, 7 Aug 2009 15:41:48 -0700
Subject: iwlwifi: refactor some thermal throttle code

Some of the thermal throttle data structures and code
are really very intermingled with the sleep (power)
control code. They really do belong together in a way
since the thermal throttle code uses powersaving to
achieve its goal, but it's making it hard to work on
the powersave code. Split this up to make that easier.
I've also changed the antenna defines to an enum and
used the same enum for RX and TX.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-agn-rs.c  | 14 +++---
 drivers/net/wireless/iwlwifi/iwl-core.c    |  2 +-
 drivers/net/wireless/iwlwifi/iwl-debugfs.c |  7 ++-
 drivers/net/wireless/iwlwifi/iwl-dev.h     |  1 +
 drivers/net/wireless/iwlwifi/iwl-power.c   | 78 +++++++++++++++---------------
 drivers/net/wireless/iwlwifi/iwl-power.h   | 50 +++++++++----------
 6 files changed, 76 insertions(+), 76 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
index 0c3ed23ed775..21331552ff2c 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
@@ -1401,7 +1401,7 @@ static int rs_move_legacy_other(struct iwl_priv *priv,
 	if (!iwl_ht_enabled(priv))
 		/* stay in Legacy */
 		tbl->action = IWL_LEGACY_SWITCH_ANTENNA1;
-	else if (iwl_tx_ant_restriction(priv) == IWL_TX_SINGLE &&
+	else if (iwl_tx_ant_restriction(priv) == IWL_ANT_OK_SINGLE &&
 		   tbl->action > IWL_LEGACY_SWITCH_SISO)
 		tbl->action = IWL_LEGACY_SWITCH_SISO;
 	for (; ;) {
@@ -1535,7 +1535,7 @@ static int rs_move_siso_to_other(struct iwl_priv *priv,
 	u8 update_search_tbl_counter = 0;
 	int ret;
 
-	if (iwl_tx_ant_restriction(priv) == IWL_TX_SINGLE &&
+	if (iwl_tx_ant_restriction(priv) == IWL_ANT_OK_SINGLE &&
 	    tbl->action > IWL_SISO_SWITCH_ANTENNA2) {
 		/* stay in SISO */
 		tbl->action = IWL_SISO_SWITCH_ANTENNA1;
@@ -1674,7 +1674,7 @@ static int rs_move_mimo2_to_other(struct iwl_priv *priv,
 	u8 update_search_tbl_counter = 0;
 	int ret;
 
-	if ((iwl_tx_ant_restriction(priv) == IWL_TX_SINGLE) &&
+	if ((iwl_tx_ant_restriction(priv) == IWL_ANT_OK_SINGLE) &&
 	    (tbl->action < IWL_MIMO2_SWITCH_SISO_A ||
 	     tbl->action > IWL_MIMO2_SWITCH_SISO_C)) {
 		/* switch in SISO */
@@ -1816,7 +1816,7 @@ static int rs_move_mimo3_to_other(struct iwl_priv *priv,
 	int ret;
 	u8 update_search_tbl_counter = 0;
 
-	if ((iwl_tx_ant_restriction(priv) == IWL_TX_SINGLE) &&
+	if ((iwl_tx_ant_restriction(priv) == IWL_ANT_OK_SINGLE) &&
 	    (tbl->action < IWL_MIMO3_SWITCH_SISO_A ||
 	     tbl->action > IWL_MIMO3_SWITCH_SISO_C)) {
 		/* switch in SISO */
@@ -2202,7 +2202,7 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
 
 	/* If we are searching for better modulation mode, check success. */
 	if (lq_sta->search_better_tbl &&
-	    (iwl_tx_ant_restriction(priv) == IWL_TX_MULTI)) {
+	    (iwl_tx_ant_restriction(priv) == IWL_ANT_OK_MULTI)) {
 		/* If good success, continue using the "search" mode;
 		 * no need to send new link quality command, since we're
 		 * continuing to use the setup that we've been trying. */
@@ -2332,7 +2332,7 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
 		scale_action = 0;
 	if (!iwl_ht_enabled(priv) && !is_legacy(tbl->lq_type))
 		scale_action = -1;
-	if (iwl_tx_ant_restriction(priv) != IWL_TX_MULTI &&
+	if (iwl_tx_ant_restriction(priv) != IWL_ANT_OK_MULTI &&
 		(is_mimo2(tbl->lq_type) || is_mimo3(tbl->lq_type)))
 		scale_action = -1;
 	switch (scale_action) {
@@ -2368,7 +2368,7 @@ lq_update:
 		rate = rs_update_rate_tbl(priv, lq_sta,
 					  tbl, index, is_green);
 
-	if (iwl_tx_ant_restriction(priv) == IWL_TX_MULTI) {
+	if (iwl_tx_ant_restriction(priv) == IWL_ANT_OK_MULTI) {
 		/* Should we stay with this modulation mode,
 		 * or search for a new one? */
 		rs_stay_in_table(lq_sta);
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 79170a9037a1..22961e906cb1 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -2214,7 +2214,7 @@ void iwl_rf_kill_ct_config(struct iwl_priv *priv)
 	iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR,
 		    CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT);
 	spin_unlock_irqrestore(&priv->lock, flags);
-	priv->power_data.ct_kill_toggle = false;
+	priv->thermal_throttle.ct_kill_toggle = false;
 
 	switch (priv->hw_rev & CSR_HW_REV_TYPE_MSK) {
 	case CSR_HW_REV_TYPE_1000:
diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
index 1ad4ff6bfff7..7b578d41101f 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
@@ -704,7 +704,7 @@ static ssize_t iwl_dbgfs_thermal_throttling_read(struct file *file,
 				size_t count, loff_t *ppos)
 {
 	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
-	struct iwl_tt_mgmt *tt = &priv->power_data.tt;
+	struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
 	struct iwl_tt_restriction *restriction;
 	char buf[100];
 	int pos = 0;
@@ -713,12 +713,11 @@ static ssize_t iwl_dbgfs_thermal_throttling_read(struct file *file,
 
 	pos += scnprintf(buf + pos, bufsz - pos,
 			"Thermal Throttling Mode: %s\n",
-			(priv->power_data.adv_tt)
-			? "Advance" : "Legacy");
+			tt->advanced_tt ? "Advance" : "Legacy");
 	pos += scnprintf(buf + pos, bufsz - pos,
 			"Thermal Throttling State: %d\n",
 			tt->state);
-	if (priv->power_data.adv_tt) {
+	if (tt->advanced_tt) {
 		restriction = tt->restriction + tt->state;
 		pos += scnprintf(buf + pos, bufsz - pos,
 				"Tx mode: %d\n",
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index 35d07a813252..1aa2ae6d0756 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -1111,6 +1111,7 @@ struct iwl_priv {
 	struct isr_statistics isr_stats;
 
 	struct iwl_power_mgr power_data;
+	struct iwl_tt_mgmt thermal_throttle;
 
 	struct iwl_notif_statistics statistics;
 	unsigned long last_statistics_time;
diff --git a/drivers/net/wireless/iwlwifi/iwl-power.c b/drivers/net/wireless/iwlwifi/iwl-power.c
index 9e8916d15ecf..27ad59d8643e 100644
--- a/drivers/net/wireless/iwlwifi/iwl-power.c
+++ b/drivers/net/wireless/iwlwifi/iwl-power.c
@@ -132,10 +132,10 @@ static const struct iwl_tt_trans tt_range_3[IWL_TI_STATE_MAX - 1] = {
 
 /* Advance Thermal Throttling default restriction table */
 static const struct iwl_tt_restriction restriction_range[IWL_TI_STATE_MAX] = {
-	{IWL_TX_MULTI, true, IWL_RX_MULTI},
-	{IWL_TX_SINGLE, true, IWL_RX_MULTI},
-	{IWL_TX_SINGLE, false, IWL_RX_SINGLE},
-	{IWL_TX_NONE, false, IWL_RX_NONE}
+	{IWL_ANT_OK_MULTI, IWL_ANT_OK_MULTI, true },
+	{IWL_ANT_OK_SINGLE, IWL_ANT_OK_MULTI, true },
+	{IWL_ANT_OK_SINGLE, IWL_ANT_OK_SINGLE, false },
+	{IWL_ANT_OK_NONE, IWL_ANT_OK_NONE, false }
 };
 
 /* set card power command */
@@ -251,7 +251,7 @@ int iwl_power_update_mode(struct iwl_priv *priv, bool force)
 {
 	struct iwl_power_mgr *setting = &(priv->power_data);
 	int ret = 0;
-	struct iwl_tt_mgmt *tt = &priv->power_data.tt;
+	struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
 	u16 uninitialized_var(final_mode);
 	bool update_chains;
 
@@ -317,35 +317,35 @@ EXPORT_SYMBOL(iwl_power_set_user_mode);
 
 bool iwl_ht_enabled(struct iwl_priv *priv)
 {
-	struct iwl_tt_mgmt *tt = &priv->power_data.tt;
+	struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
 	struct iwl_tt_restriction *restriction;
 
-	if (!priv->power_data.adv_tt)
+	if (!priv->thermal_throttle.advanced_tt)
 		return true;
 	restriction = tt->restriction + tt->state;
 	return restriction->is_ht;
 }
 EXPORT_SYMBOL(iwl_ht_enabled);
 
-u8 iwl_tx_ant_restriction(struct iwl_priv *priv)
+enum iwl_antenna_ok iwl_tx_ant_restriction(struct iwl_priv *priv)
 {
-	struct iwl_tt_mgmt *tt = &priv->power_data.tt;
+	struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
 	struct iwl_tt_restriction *restriction;
 
-	if (!priv->power_data.adv_tt)
-		return IWL_TX_MULTI;
+	if (!priv->thermal_throttle.advanced_tt)
+		return IWL_ANT_OK_MULTI;
 	restriction = tt->restriction + tt->state;
 	return restriction->tx_stream;
 }
 EXPORT_SYMBOL(iwl_tx_ant_restriction);
 
-u8 iwl_rx_ant_restriction(struct iwl_priv *priv)
+enum iwl_antenna_ok iwl_rx_ant_restriction(struct iwl_priv *priv)
 {
-	struct iwl_tt_mgmt *tt = &priv->power_data.tt;
+	struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
 	struct iwl_tt_restriction *restriction;
 
-	if (!priv->power_data.adv_tt)
-		return IWL_RX_MULTI;
+	if (!priv->thermal_throttle.advanced_tt)
+		return IWL_ANT_OK_MULTI;
 	restriction = tt->restriction + tt->state;
 	return restriction->rx_stream;
 }
@@ -364,21 +364,21 @@ EXPORT_SYMBOL(iwl_rx_ant_restriction);
 static void iwl_tt_check_exit_ct_kill(unsigned long data)
 {
 	struct iwl_priv *priv = (struct iwl_priv *)data;
-	struct iwl_tt_mgmt *tt = &priv->power_data.tt;
+	struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
 	unsigned long flags;
 
 	if (test_bit(STATUS_EXIT_PENDING, &priv->status))
 		return;
 
 	if (tt->state == IWL_TI_CT_KILL) {
-		if (priv->power_data.ct_kill_toggle) {
+		if (priv->thermal_throttle.ct_kill_toggle) {
 			iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR,
 				    CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT);
-			priv->power_data.ct_kill_toggle = false;
+			priv->thermal_throttle.ct_kill_toggle = false;
 		} else {
 			iwl_write32(priv, CSR_UCODE_DRV_GP1_SET,
 				    CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT);
-			priv->power_data.ct_kill_toggle = true;
+			priv->thermal_throttle.ct_kill_toggle = true;
 		}
 		iwl_read32(priv, CSR_UCODE_DRV_GP1);
 		spin_lock_irqsave(&priv->reg_lock, flags);
@@ -389,7 +389,7 @@ static void iwl_tt_check_exit_ct_kill(unsigned long data)
 		/* Reschedule the ct_kill timer to occur in
 		 * CT_KILL_EXIT_DURATION seconds to ensure we get a
 		 * thermal update */
-		mod_timer(&priv->power_data.ct_kill_exit_tm, jiffies +
+		mod_timer(&priv->thermal_throttle.ct_kill_exit_tm, jiffies +
 			  CT_KILL_EXIT_DURATION * HZ);
 	}
 }
@@ -403,7 +403,7 @@ static void iwl_perform_ct_kill_task(struct iwl_priv *priv,
 			ieee80211_stop_queues(priv->hw);
 		IWL_DEBUG_POWER(priv,
 				"Schedule 5 seconds CT_KILL Timer\n");
-		mod_timer(&priv->power_data.ct_kill_exit_tm, jiffies +
+		mod_timer(&priv->thermal_throttle.ct_kill_exit_tm, jiffies +
 			  CT_KILL_EXIT_DURATION * HZ);
 	} else {
 		IWL_DEBUG_POWER(priv, "Wake all queues\n");
@@ -427,7 +427,7 @@ static void iwl_perform_ct_kill_task(struct iwl_priv *priv,
  */
 static void iwl_legacy_tt_handler(struct iwl_priv *priv, s32 temp)
 {
-	struct iwl_tt_mgmt *tt = &priv->power_data.tt;
+	struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
 	enum iwl_tt_state old_state;
 	struct iwl_power_mgr *setting = &priv->power_data;
 
@@ -531,7 +531,7 @@ static void iwl_legacy_tt_handler(struct iwl_priv *priv, s32 temp)
  */
 static void iwl_advance_tt_handler(struct iwl_priv *priv, s32 temp)
 {
-	struct iwl_tt_mgmt *tt = &priv->power_data.tt;
+	struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
 	int i;
 	bool changed = false;
 	enum iwl_tt_state old_state;
@@ -655,7 +655,7 @@ static void iwl_advance_tt_handler(struct iwl_priv *priv, s32 temp)
 static void iwl_bg_ct_enter(struct work_struct *work)
 {
 	struct iwl_priv *priv = container_of(work, struct iwl_priv, ct_enter);
-	struct iwl_tt_mgmt *tt = &priv->power_data.tt;
+	struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
 
 	if (test_bit(STATUS_EXIT_PENDING, &priv->status))
 		return;
@@ -666,7 +666,7 @@ static void iwl_bg_ct_enter(struct work_struct *work)
 	if (tt->state != IWL_TI_CT_KILL) {
 		IWL_ERR(priv, "Device reached critical temperature "
 			      "- ucode going to sleep!\n");
-		if (!priv->power_data.adv_tt)
+		if (!priv->thermal_throttle.advanced_tt)
 			iwl_legacy_tt_handler(priv,
 					      IWL_MINIMAL_POWER_THRESHOLD);
 		else
@@ -683,7 +683,7 @@ static void iwl_bg_ct_enter(struct work_struct *work)
 static void iwl_bg_ct_exit(struct work_struct *work)
 {
 	struct iwl_priv *priv = container_of(work, struct iwl_priv, ct_exit);
-	struct iwl_tt_mgmt *tt = &priv->power_data.tt;
+	struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
 
 	if (test_bit(STATUS_EXIT_PENDING, &priv->status))
 		return;
@@ -692,13 +692,13 @@ static void iwl_bg_ct_exit(struct work_struct *work)
 		return;
 
 	/* stop ct_kill_exit_tm timer */
-	del_timer_sync(&priv->power_data.ct_kill_exit_tm);
+	del_timer_sync(&priv->thermal_throttle.ct_kill_exit_tm);
 
 	if (tt->state == IWL_TI_CT_KILL) {
 		IWL_ERR(priv,
 			"Device temperature below critical"
 			"- ucode awake!\n");
-		if (!priv->power_data.adv_tt)
+		if (!priv->thermal_throttle.advanced_tt)
 			iwl_legacy_tt_handler(priv,
 					IWL_REDUCED_PERFORMANCE_THRESHOLD_2);
 		else
@@ -737,7 +737,7 @@ static void iwl_bg_tt_work(struct work_struct *work)
 	if ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_4965)
 		temp = KELVIN_TO_CELSIUS(priv->temperature);
 
-	if (!priv->power_data.adv_tt)
+	if (!priv->thermal_throttle.advanced_tt)
 		iwl_legacy_tt_handler(priv, temp);
 	else
 		iwl_advance_tt_handler(priv, temp);
@@ -760,7 +760,7 @@ EXPORT_SYMBOL(iwl_tt_handler);
  */
 void iwl_tt_initialize(struct iwl_priv *priv)
 {
-	struct iwl_tt_mgmt *tt = &priv->power_data.tt;
+	struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
 	struct iwl_power_mgr *setting = &priv->power_data;
 	int size = sizeof(struct iwl_tt_trans) * (IWL_TI_STATE_MAX - 1);
 	struct iwl_tt_trans *transaction;
@@ -772,9 +772,9 @@ void iwl_tt_initialize(struct iwl_priv *priv)
 	tt->state = IWL_TI_0;
 	tt->sys_power_mode = setting->power_mode;
 	tt->tt_power_mode = tt->sys_power_mode;
-	init_timer(&priv->power_data.ct_kill_exit_tm);
-	priv->power_data.ct_kill_exit_tm.data = (unsigned long)priv;
-	priv->power_data.ct_kill_exit_tm.function = iwl_tt_check_exit_ct_kill;
+	init_timer(&priv->thermal_throttle.ct_kill_exit_tm);
+	priv->thermal_throttle.ct_kill_exit_tm.data = (unsigned long)priv;
+	priv->thermal_throttle.ct_kill_exit_tm.function = iwl_tt_check_exit_ct_kill;
 
 	/* setup deferred ct kill work */
 	INIT_WORK(&priv->tt_work, iwl_bg_tt_work);
@@ -792,7 +792,7 @@ void iwl_tt_initialize(struct iwl_priv *priv)
 			GFP_KERNEL);
 		if (!tt->restriction || !tt->transaction) {
 			IWL_ERR(priv, "Fallback to Legacy Throttling\n");
-			priv->power_data.adv_tt = false;
+			priv->thermal_throttle.advanced_tt = false;
 			kfree(tt->restriction);
 			tt->restriction = NULL;
 			kfree(tt->transaction);
@@ -814,12 +814,12 @@ void iwl_tt_initialize(struct iwl_priv *priv)
 				IWL_TI_STATE_MAX;
 			memcpy(tt->restriction,
 				&restriction_range[0], size);
-			priv->power_data.adv_tt = true;
+			priv->thermal_throttle.advanced_tt = true;
 		}
 		break;
 	default:
 		IWL_DEBUG_POWER(priv, "Legacy Thermal Throttling\n");
-		priv->power_data.adv_tt = false;
+		priv->thermal_throttle.advanced_tt = false;
 		break;
 	}
 }
@@ -828,15 +828,15 @@ EXPORT_SYMBOL(iwl_tt_initialize);
 /* cleanup thermal throttling management related memory and timer */
 void iwl_tt_exit(struct iwl_priv *priv)
 {
-	struct iwl_tt_mgmt *tt = &priv->power_data.tt;
+	struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
 
 	/* stop ct_kill_exit_tm timer if activated */
-	del_timer_sync(&priv->power_data.ct_kill_exit_tm);
+	del_timer_sync(&priv->thermal_throttle.ct_kill_exit_tm);
 	cancel_work_sync(&priv->tt_work);
 	cancel_work_sync(&priv->ct_enter);
 	cancel_work_sync(&priv->ct_exit);
 
-	if (priv->power_data.adv_tt) {
+	if (priv->thermal_throttle.advanced_tt) {
 		/* free advance thermal throttling memory */
 		kfree(tt->restriction);
 		tt->restriction = NULL;
diff --git a/drivers/net/wireless/iwlwifi/iwl-power.h b/drivers/net/wireless/iwlwifi/iwl-power.h
index 3d49b7a45b74..15e3eabd2e84 100644
--- a/drivers/net/wireless/iwlwifi/iwl-power.h
+++ b/drivers/net/wireless/iwlwifi/iwl-power.h
@@ -37,13 +37,11 @@ struct iwl_priv;
 #define IWL_ABSOLUTE_MAX		0xFFFFFFFF
 #define IWL_TT_INCREASE_MARGIN	5
 
-/* Tx/Rx restrictions */
-#define IWL_TX_MULTI		0x02
-#define IWL_TX_SINGLE		0x01
-#define IWL_TX_NONE		0x00
-#define IWL_RX_MULTI		0x02
-#define IWL_RX_SINGLE		0x01
-#define IWL_RX_NONE		0x00
+enum iwl_antenna_ok {
+	IWL_ANT_OK_NONE,
+	IWL_ANT_OK_SINGLE,
+	IWL_ANT_OK_MULTI,
+};
 
 /* Thermal Throttling State Machine states */
 enum  iwl_tt_state {
@@ -55,27 +53,30 @@ enum  iwl_tt_state {
 };
 
 /**
- * struct iwl_tt_restriction - Thermal Throttling restriction table used
- *		by advance thermal throttling management
- *		based on the current thermal throttling state, determine
- *		number of tx/rx streams; and the status of HT operation
+ * struct iwl_tt_restriction - Thermal Throttling restriction table
  * @tx_stream: number of tx stream allowed
  * @is_ht: ht enable/disable
  * @rx_stream: number of rx stream allowed
+ *
+ * This table is used by advance thermal throttling management
+ * based on the current thermal throttling state, and determines
+ * the number of tx/rx streams and the status of HT operation.
  */
 struct iwl_tt_restriction {
-	u8 tx_stream;
+	enum iwl_antenna_ok tx_stream;
+	enum iwl_antenna_ok rx_stream;
 	bool is_ht;
-	u8 rx_stream;
 };
 
 /**
- * struct iwl_tt_trans - Thermal Throttling transaction table; used by
- * 		advance thermal throttling algorithm to determine next
- *		thermal state to go based on the current temperature
+ * struct iwl_tt_trans - Thermal Throttling transaction table
  * @next_state:  next thermal throttling mode
  * @tt_low: low temperature threshold to change state
  * @tt_high: high temperature threshold to change state
+ *
+ * This is used by the advanced thermal throttling algorithm
+ * to determine the next thermal state to go based on the
+ * current temperature.
  */
 struct iwl_tt_trans {
 	enum iwl_tt_state next_state;
@@ -85,6 +86,7 @@ struct iwl_tt_trans {
 
 /**
  * struct iwl_tt_mgnt - Thermal Throttling Management structure
+ * @advanced_tt:    advanced thermal throttle required
  * @state:          current Thermal Throttling state
  * @tt_power_mode:  Thermal Throttling power mode index
  *		    being used to set power level when
@@ -99,16 +101,21 @@ struct iwl_tt_trans {
  *		    should be used in tt state; and can HT be enabled or not
  * @iwl_tt_trans: ptr to adv trans table, used by advance thermal throttling
  *		    state transaction
+ * @ct_kill_toggle: used to toggle the CSR bit when checking uCode temperature
+ * @ct_kill_exit_tm: timer to exit thermal kill
  */
 struct iwl_tt_mgmt {
 	enum iwl_tt_state state;
+	bool advanced_tt;
 	u8 tt_power_mode;
 	u8 sys_power_mode;
+	bool ct_kill_toggle;
 #ifdef CONFIG_IWLWIFI_DEBUG
 	s32 tt_previous_temp;
 #endif
 	struct iwl_tt_restriction *restriction;
 	struct iwl_tt_trans *transaction;
+	struct timer_list ct_kill_exit_tm;
 };
 
 enum {
@@ -137,20 +144,13 @@ struct iwl_power_mgr {
 	u8 power_mode;
 	u8 user_power_setting; /* set by user through sysfs */
 	u8 power_disabled; /* set by mac80211's CONF_PS */
-	struct iwl_tt_mgmt tt; /* Thermal Throttling Management */
-	bool adv_tt;		/* false: legacy mode */
-				/* true: advance mode */
-	bool ct_kill_toggle;   /* use to toggle the CSR bit when
-				* checking uCode temperature
-				*/
-	struct timer_list ct_kill_exit_tm;
 };
 
 int iwl_power_update_mode(struct iwl_priv *priv, bool force);
 int iwl_power_set_user_mode(struct iwl_priv *priv, u16 mode);
 bool iwl_ht_enabled(struct iwl_priv *priv);
-u8 iwl_tx_ant_restriction(struct iwl_priv *priv);
-u8 iwl_rx_ant_restriction(struct iwl_priv *priv);
+enum iwl_antenna_ok iwl_tx_ant_restriction(struct iwl_priv *priv);
+enum iwl_antenna_ok iwl_rx_ant_restriction(struct iwl_priv *priv);
 void iwl_tt_enter_ct_kill(struct iwl_priv *priv);
 void iwl_tt_exit_ct_kill(struct iwl_priv *priv);
 void iwl_tt_handler(struct iwl_priv *priv);
-- 
cgit v1.2.3


From 450ccb36b4d8a18c34643335d3305ec1a781e717 Mon Sep 17 00:00:00 2001
From: Reinette Chatre <reinette.chatre@intel.com>
Date: Fri, 7 Aug 2009 15:41:49 -0700
Subject: iwlwifi: fix missing EXPORT_SYMBOL

When compiling without CONFIG_IWLWIFI_DEBUGFS there is a missing
iwl_update_stats symbol. This is fixed by making this function an inline in
the case when CONFIG_IWLWIFI_DEBUGFS is not set due to the hot path in
which it is used.

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-core.c | 16 ----------------
 drivers/net/wireless/iwlwifi/iwl-core.h | 19 +++++++++++++++++--
 2 files changed, 17 insertions(+), 18 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 22961e906cb1..44d01a2f2941 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -3172,22 +3172,6 @@ void iwl_update_stats(struct iwl_priv *priv, bool is_tx, __le16 fc, u16 len)
 	}
 }
 EXPORT_SYMBOL(iwl_update_stats);
-
-#else
-void iwl_update_stats(struct iwl_priv *priv, bool is_tx, __le16 fc, u16 len)
-{
-	struct traffic_stats	*stats;
-
-	if (is_tx)
-		stats = &priv->tx_stats;
-	else
-		stats = &priv->rx_stats;
-
-	if (ieee80211_is_data(fc)) {
-		/* data */
-		stats->data_bytes += len;
-	}
-}
 #endif
 
 #ifdef CONFIG_PM
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h
index ea8748dd675d..32750f4f1ce1 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.h
+++ b/drivers/net/wireless/iwlwifi/iwl-core.h
@@ -314,6 +314,8 @@ const char *get_mgmt_string(int cmd);
 const char *get_ctrl_string(int cmd);
 void iwl_clear_tx_stats(struct iwl_priv *priv);
 void iwl_clear_rx_stats(struct iwl_priv *priv);
+void iwl_update_stats(struct iwl_priv *priv, bool is_tx, __le16 fc,
+		      u16 len);
 #else
 static inline int iwl_alloc_traffic_mem(struct iwl_priv *priv)
 {
@@ -333,9 +335,22 @@ static inline void iwl_dbg_log_rx_data_frame(struct iwl_priv *priv,
 		      u16 length, struct ieee80211_hdr *header)
 {
 }
+static inline void iwl_update_stats(struct iwl_priv *priv, bool is_tx,
+				    __le16 fc, u16 len)
+{
+	struct traffic_stats	*stats;
+
+	if (is_tx)
+		stats = &priv->tx_stats;
+	else
+		stats = &priv->rx_stats;
+
+	if (ieee80211_is_data(fc)) {
+		/* data */
+		stats->data_bytes += len;
+	}
+}
 #endif
-void iwl_update_stats(struct iwl_priv *priv, bool is_tx, __le16 fc,
-		      u16 len);
 /*****************************************************
  * RX handlers.
  * **************************************************/
-- 
cgit v1.2.3


From d91b1ba37744bc7fb7524516be855c9fa81142e2 Mon Sep 17 00:00:00 2001
From: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Date: Fri, 7 Aug 2009 15:41:50 -0700
Subject: iwlwifi: display correct critical temperature infomation

Do not send CT KILL config command twice and correct critical
temperature informatiom in dmesg

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-core.c | 24 ++++++++++++++++--------
 1 file changed, 16 insertions(+), 8 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 44d01a2f2941..36c6e16285de 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -2227,6 +2227,15 @@ void iwl_rf_kill_ct_config(struct iwl_priv *priv)
 
 		ret = iwl_send_cmd_pdu(priv, REPLY_CT_KILL_CONFIG_CMD,
 				       sizeof(adv_cmd), &adv_cmd);
+		if (ret)
+			IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n");
+		else
+			IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD "
+					"succeeded, "
+					"critical temperature enter is %d,"
+					"exit is %d\n",
+				       priv->hw_params.ct_kill_threshold,
+				       priv->hw_params.ct_kill_exit_threshold);
 		break;
 	default:
 		cmd.critical_temperature_R =
@@ -2234,16 +2243,15 @@ void iwl_rf_kill_ct_config(struct iwl_priv *priv)
 
 		ret = iwl_send_cmd_pdu(priv, REPLY_CT_KILL_CONFIG_CMD,
 				       sizeof(cmd), &cmd);
+		if (ret)
+			IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n");
+		else
+			IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD "
+					"succeeded, "
+					"critical temperature is %d\n",
+					priv->hw_params.ct_kill_threshold);
 		break;
 	}
-	ret = iwl_send_cmd_pdu(priv, REPLY_CT_KILL_CONFIG_CMD,
-			       sizeof(cmd), &cmd);
-	if (ret)
-		IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n");
-	else
-		IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD succeeded, "
-			"critical temperature is %d\n",
-			cmd.critical_temperature_R);
 }
 EXPORT_SYMBOL(iwl_rf_kill_ct_config);
 
-- 
cgit v1.2.3


From e312c24cf8229f9b6e76dbfd5d99eefe21f4ac0a Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Fri, 7 Aug 2009 15:41:51 -0700
Subject: iwlwifi: automatically adjust sleep level

Depending on required latency requested by pm_qos (via mac80211)
we can automatically adjust the sleep state. Also, mac80211 has
a user-visible dynamic sleep feature where we are supposed to
stay awake after sending/receiving frames to better receive
response frames to our packets, this can be integrated into the
sleep command.

Currently, and this patch doesn't change that yet, we default
to using sleep level 1 if PS is enabled. With a module parameter
to iwlcore, automatic adjustment to changing network latency
requirements can be enabled -- this isn't yet the default due
to requiring more testing.

The goal is to enable automatic adjustment and then go into the
deepest possible sleep state possible depending on the networking
latency requirements.

This patch does, however, enable IEEE80211_HW_SUPPORTS_DYNAMIC_PS
to avoid the double-timer (one in software and one in the device)
when transmitting -- the exact timeout may be ignored but that is
not of big concern.

Note also that we keep the hard-coded power indices around for
thermal throttling -- the specification of that calls for using
the specified power levels. Those can also be selected in debugfs
to allow easier testing of such parameters.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-agn.c      |  46 +---
 drivers/net/wireless/iwlwifi/iwl-calib.c    |   2 +-
 drivers/net/wireless/iwlwifi/iwl-commands.h |   7 +
 drivers/net/wireless/iwlwifi/iwl-core.c     |  15 +-
 drivers/net/wireless/iwlwifi/iwl-debug.h    |   2 +
 drivers/net/wireless/iwlwifi/iwl-debugfs.c  |  83 ++++++++
 drivers/net/wireless/iwlwifi/iwl-dev.h      |   1 -
 drivers/net/wireless/iwlwifi/iwl-power.c    | 317 +++++++++++++---------------
 drivers/net/wireless/iwlwifi/iwl-power.h    |  30 +--
 drivers/net/wireless/iwlwifi/iwl3945-base.c |  66 +-----
 10 files changed, 256 insertions(+), 313 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index 319df4ab7f13..2232b1794e76 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -1606,7 +1606,7 @@ static void iwl_alive_start(struct iwl_priv *priv)
 	set_bit(STATUS_READY, &priv->status);
 	wake_up_interruptible(&priv->wait_command_queue);
 
-	iwl_power_update_mode(priv, 1);
+	iwl_power_update_mode(priv, true);
 
 	/* reassociate for ADHOC mode */
 	if (priv->vif && (priv->iw_mode == NL80211_IFTYPE_ADHOC)) {
@@ -2075,7 +2075,7 @@ void iwl_post_associate(struct iwl_priv *priv)
 	 * If chain noise has already been run, then we need to enable
 	 * power management here */
 	if (priv->chain_noise_data.state == IWL_CHAIN_NOISE_DONE)
-		iwl_power_update_mode(priv, 0);
+		iwl_power_update_mode(priv, false);
 
 	/* Enable Rx differential gain and sensitivity calibrations */
 	iwl_chain_noise_reset(priv);
@@ -2565,47 +2565,6 @@ static ssize_t store_filter_flags(struct device *d,
 static DEVICE_ATTR(filter_flags, S_IWUSR | S_IRUGO, show_filter_flags,
 		   store_filter_flags);
 
-static ssize_t store_power_level(struct device *d,
-				 struct device_attribute *attr,
-				 const char *buf, size_t count)
-{
-	struct iwl_priv *priv = dev_get_drvdata(d);
-	int ret;
-	unsigned long mode;
-
-
-	mutex_lock(&priv->mutex);
-
-	ret = strict_strtoul(buf, 10, &mode);
-	if (ret)
-		goto out;
-
-	ret = iwl_power_set_user_mode(priv, mode);
-	if (ret) {
-		IWL_DEBUG_MAC80211(priv, "failed setting power mode.\n");
-		goto out;
-	}
-	ret = count;
-
- out:
-	mutex_unlock(&priv->mutex);
-	return ret;
-}
-
-static ssize_t show_power_level(struct device *d,
-				struct device_attribute *attr, char *buf)
-{
-	struct iwl_priv *priv = dev_get_drvdata(d);
-	int level = priv->power_data.power_mode;
-	char *p = buf;
-
-	p += sprintf(p, "%d\n", level);
-	return p - buf + 1;
-}
-
-static DEVICE_ATTR(power_level, S_IWUSR | S_IRUSR, show_power_level,
-		   store_power_level);
-
 
 static ssize_t show_statistics(struct device *d,
 			       struct device_attribute *attr, char *buf)
@@ -2698,7 +2657,6 @@ static void iwl_cancel_deferred_work(struct iwl_priv *priv)
 static struct attribute *iwl_sysfs_entries[] = {
 	&dev_attr_flags.attr,
 	&dev_attr_filter_flags.attr,
-	&dev_attr_power_level.attr,
 	&dev_attr_statistics.attr,
 	&dev_attr_temperature.attr,
 	&dev_attr_tx_power.attr,
diff --git a/drivers/net/wireless/iwlwifi/iwl-calib.c b/drivers/net/wireless/iwlwifi/iwl-calib.c
index 13180d6ee2f7..c4b565a2de94 100644
--- a/drivers/net/wireless/iwlwifi/iwl-calib.c
+++ b/drivers/net/wireless/iwlwifi/iwl-calib.c
@@ -852,7 +852,7 @@ void iwl_chain_noise_calibration(struct iwl_priv *priv,
 		priv->cfg->ops->lib->update_chain_flags(priv);
 
 	data->state = IWL_CHAIN_NOISE_DONE;
-	iwl_power_update_mode(priv, 0);
+	iwl_power_update_mode(priv, false);
 }
 EXPORT_SYMBOL(iwl_chain_noise_calibration);
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-commands.h b/drivers/net/wireless/iwlwifi/iwl-commands.h
index 6188c54113b0..68d7719071f7 100644
--- a/drivers/net/wireless/iwlwifi/iwl-commands.h
+++ b/drivers/net/wireless/iwlwifi/iwl-commands.h
@@ -2313,15 +2313,22 @@ struct iwl_spectrum_notification {
  * PM allow:
  *   bit 0 - '0' Driver not allow power management
  *           '1' Driver allow PM (use rest of parameters)
+ *
  * uCode send sleep notifications:
  *   bit 1 - '0' Don't send sleep notification
  *           '1' send sleep notification (SEND_PM_NOTIFICATION)
+ *
  * Sleep over DTIM
  *   bit 2 - '0' PM have to walk up every DTIM
  *           '1' PM could sleep over DTIM till listen Interval.
+ *
  * PCI power managed
  *   bit 3 - '0' (PCI_CFG_LINK_CTRL & 0x1)
  *           '1' !(PCI_CFG_LINK_CTRL & 0x1)
+ *
+ * Fast PD
+ *   bit 4 - '1' Put radio to sleep when receiving frame for others
+ *
  * Force sleep Modes
  *   bit 31/30- '00' use both mac/xtal sleeps
  *              '01' force Mac sleep
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 36c6e16285de..af735128333a 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -1568,7 +1568,8 @@ int iwl_setup_mac(struct iwl_priv *priv)
 		    IEEE80211_HW_NOISE_DBM |
 		    IEEE80211_HW_AMPDU_AGGREGATION |
 		    IEEE80211_HW_SPECTRUM_MGMT |
-		    IEEE80211_HW_SUPPORTS_PS;
+		    IEEE80211_HW_SUPPORTS_PS |
+		    IEEE80211_HW_SUPPORTS_DYNAMIC_PS;
 	hw->wiphy->interface_modes =
 		BIT(NL80211_IFTYPE_STATION) |
 		BIT(NL80211_IFTYPE_ADHOC);
@@ -1663,8 +1664,6 @@ int iwl_init_drv(struct iwl_priv *priv)
 	priv->qos_data.qos_cap.val = 0;
 
 	priv->rates_mask = IWL_RATES_MASK;
-	/* If power management is turned on, default to CAM mode */
-	priv->power_mode = IWL_POWER_MODE_CAM;
 	priv->tx_power_user_lmt = IWL_TX_POWER_TARGET_POWER_MAX;
 
 	ret = iwl_init_channel_map(priv);
@@ -2551,7 +2550,6 @@ void iwl_bss_info_changed(struct ieee80211_hw *hw,
 		if (bss_conf->assoc) {
 			priv->assoc_id = bss_conf->aid;
 			priv->beacon_int = bss_conf->beacon_int;
-			priv->power_data.dtim_period = bss_conf->dtim_period;
 			priv->timestamp = bss_conf->timestamp;
 			priv->assoc_capability = bss_conf->assoc_capability;
 
@@ -2801,13 +2799,10 @@ int iwl_mac_config(struct ieee80211_hw *hw, u32 changed)
 		iwl_set_rate(priv);
 	}
 
-	if (changed & IEEE80211_CONF_CHANGE_PS &&
-	    priv->iw_mode == NL80211_IFTYPE_STATION) {
-		priv->power_data.power_disabled =
-			!(conf->flags & IEEE80211_CONF_PS);
-		ret = iwl_power_update_mode(priv, 0);
+	if (changed & IEEE80211_CONF_CHANGE_PS) {
+		ret = iwl_power_update_mode(priv, false);
 		if (ret)
-			IWL_DEBUG_MAC80211(priv, "Error setting power level\n");
+			IWL_DEBUG_MAC80211(priv, "Error setting sleep level\n");
 	}
 
 	if (changed & IEEE80211_CONF_CHANGE_POWER) {
diff --git a/drivers/net/wireless/iwlwifi/iwl-debug.h b/drivers/net/wireless/iwlwifi/iwl-debug.h
index 82befb7ce997..723f38a023ce 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debug.h
+++ b/drivers/net/wireless/iwlwifi/iwl-debug.h
@@ -88,6 +88,8 @@ struct iwl_debugfs {
 		struct dentry *file_led;
 #endif
 		struct dentry *file_disable_ht40;
+		struct dentry *file_sleep_level_override;
+		struct dentry *file_current_sleep_command;
 	} dbgfs_data_files;
 	struct dir_rf_files {
 		struct dentry *file_disable_sensitivity;
diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
index 7b578d41101f..f68fb4711da2 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
@@ -776,6 +776,83 @@ static ssize_t iwl_dbgfs_disable_ht40_read(struct file *file,
 	return ret;
 }
 
+static ssize_t iwl_dbgfs_sleep_level_override_write(struct file *file,
+						    const char __user *user_buf,
+						    size_t count, loff_t *ppos)
+{
+	struct iwl_priv *priv = file->private_data;
+	char buf[8];
+	int buf_size;
+	int value;
+
+	memset(buf, 0, sizeof(buf));
+	buf_size = min(count, sizeof(buf) -  1);
+	if (copy_from_user(buf, user_buf, buf_size))
+		return -EFAULT;
+
+	if (sscanf(buf, "%d", &value) != 1)
+		return -EINVAL;
+
+	/*
+	 * Our users expect 0 to be "CAM", but 0 isn't actually
+	 * valid here. However, let's not confuse them and present
+	 * IWL_POWER_INDEX_1 as "1", not "0".
+	 */
+	if (value > 0)
+		value -= 1;
+
+	if (value != -1 && (value < 0 || value >= IWL_POWER_NUM))
+		return -EINVAL;
+
+	priv->power_data.debug_sleep_level_override = value;
+
+	iwl_power_update_mode(priv, false);
+
+	return count;
+}
+
+static ssize_t iwl_dbgfs_sleep_level_override_read(struct file *file,
+						   char __user *user_buf,
+						   size_t count, loff_t *ppos)
+{
+	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+	char buf[10];
+	int pos, value;
+	const size_t bufsz = sizeof(buf);
+
+	/* see the write function */
+	value = priv->power_data.debug_sleep_level_override;
+	if (value >= 0)
+		value += 1;
+
+	pos = scnprintf(buf, bufsz, "%d\n", value);
+	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+}
+
+static ssize_t iwl_dbgfs_current_sleep_command_read(struct file *file,
+						    char __user *user_buf,
+						    size_t count, loff_t *ppos)
+{
+	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+	char buf[200];
+	int pos = 0, i;
+	const size_t bufsz = sizeof(buf);
+	struct iwl_powertable_cmd *cmd = &priv->power_data.sleep_cmd;
+
+	pos += scnprintf(buf + pos, bufsz - pos,
+			 "flags: %#.2x\n", le16_to_cpu(cmd->flags));
+	pos += scnprintf(buf + pos, bufsz - pos,
+			 "RX/TX timeout: %d/%d usec\n",
+			 le32_to_cpu(cmd->rx_data_timeout),
+			 le32_to_cpu(cmd->tx_data_timeout));
+	for (i = 0; i < IWL_POWER_VEC_SIZE; i++)
+		pos += scnprintf(buf + pos, bufsz - pos,
+				 "sleep_interval[%d]: %d\n", i,
+				 le32_to_cpu(cmd->sleep_interval[i]));
+
+	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+}
+
 DEBUGFS_READ_WRITE_FILE_OPS(sram);
 DEBUGFS_WRITE_FILE_OPS(log_event);
 DEBUGFS_READ_FILE_OPS(nvm);
@@ -789,6 +866,8 @@ DEBUGFS_READ_FILE_OPS(led);
 #endif
 DEBUGFS_READ_FILE_OPS(thermal_throttling);
 DEBUGFS_READ_WRITE_FILE_OPS(disable_ht40);
+DEBUGFS_READ_WRITE_FILE_OPS(sleep_level_override);
+DEBUGFS_READ_FILE_OPS(current_sleep_command);
 
 static ssize_t iwl_dbgfs_traffic_log_read(struct file *file,
 					 char __user *user_buf,
@@ -1533,6 +1612,8 @@ int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
 #ifdef CONFIG_IWLWIFI_LEDS
 	DEBUGFS_ADD_FILE(led, data);
 #endif
+	DEBUGFS_ADD_FILE(sleep_level_override, data);
+	DEBUGFS_ADD_FILE(current_sleep_command, data);
 	DEBUGFS_ADD_FILE(thermal_throttling, data);
 	DEBUGFS_ADD_FILE(disable_ht40, data);
 	DEBUGFS_ADD_FILE(rx_statistics, debug);
@@ -1572,6 +1653,8 @@ void iwl_dbgfs_unregister(struct iwl_priv *priv)
 	if (!priv->dbgfs)
 		return;
 
+	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_sleep_level_override);
+	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_current_sleep_command);
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_nvm);
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_sram);
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_log_event);
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index 1aa2ae6d0756..b96c3c9e92a9 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -1119,7 +1119,6 @@ struct iwl_priv {
 	/* context information */
 	u16 rates_mask;
 
-	u32 power_mode;
 	u8 bssid[ETH_ALEN];
 	u16 rts_threshold;
 	u8 mac_addr[ETH_ALEN];
diff --git a/drivers/net/wireless/iwlwifi/iwl-power.c b/drivers/net/wireless/iwlwifi/iwl-power.c
index 27ad59d8643e..0b16841f45f4 100644
--- a/drivers/net/wireless/iwlwifi/iwl-power.c
+++ b/drivers/net/wireless/iwlwifi/iwl-power.c
@@ -42,20 +42,35 @@
 #include "iwl-power.h"
 
 /*
- * Setting power level allow the card to go to sleep when not busy.
+ * Setting power level allows the card to go to sleep when not busy.
  *
- * The power level is set to INDEX_1 (the least deep state) by
- * default, and will, in the future, be the deepest state unless
- * otherwise required by pm_qos network latency requirements.
- *
- * Using INDEX_1 without pm_qos is ok because mac80211 will disable
- * PS when even checking every beacon for the TIM bit would exceed
- * the required latency.
+ * We calculate a sleep command based on the required latency, which
+ * we get from mac80211. In order to handle thermal throttling, we can
+ * also use pre-defined power levels.
  */
 
-#define IWL_POWER_RANGE_0_MAX  (2)
-#define IWL_POWER_RANGE_1_MAX  (10)
+/*
+ * For now, keep using power level 1 instead of automatically
+ * adjusting ...
+ */
+bool no_sleep_autoadjust = true;
+module_param(no_sleep_autoadjust, bool, S_IRUGO);
+MODULE_PARM_DESC(no_sleep_autoadjust,
+		 "don't automatically adjust sleep level "
+		 "according to maximum network latency");
 
+/*
+ * This defines the old power levels. They are still used by default
+ * (level 1) and for thermal throttle (levels 3 through 5)
+ */
+
+struct iwl_power_vec_entry {
+	struct iwl_powertable_cmd cmd;
+	u8 no_dtim;
+};
+
+#define IWL_DTIM_RANGE_0_MAX	2
+#define IWL_DTIM_RANGE_1_MAX	10
 
 #define NOSLP cpu_to_le16(0), 0, 0
 #define SLP IWL_POWER_DRIVER_ALLOW_SLEEP_MSK, 0, 0
@@ -67,9 +82,8 @@
 				     cpu_to_le32(X3), \
 				     cpu_to_le32(X4)}
 /* default power management (not Tx power) table values */
-/* for DTIM period 0 through IWL_POWER_RANGE_0_MAX */
+/* for DTIM period 0 through IWL_DTIM_RANGE_0_MAX */
 static const struct iwl_power_vec_entry range_0[IWL_POWER_NUM] = {
-	{{NOSLP, SLP_TOUT(0), SLP_TOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
 	{{SLP, SLP_TOUT(200), SLP_TOUT(500), SLP_VEC(1, 2, 2, 2, 0xFF)}, 0},
 	{{SLP, SLP_TOUT(200), SLP_TOUT(300), SLP_VEC(1, 2, 2, 2, 0xFF)}, 0},
 	{{SLP, SLP_TOUT(50), SLP_TOUT(100), SLP_VEC(2, 2, 2, 2, 0xFF)}, 0},
@@ -78,9 +92,8 @@ static const struct iwl_power_vec_entry range_0[IWL_POWER_NUM] = {
 };
 
 
-/* for DTIM period IWL_POWER_RANGE_0_MAX + 1 through IWL_POWER_RANGE_1_MAX */
+/* for DTIM period IWL_DTIM_RANGE_0_MAX + 1 through IWL_DTIM_RANGE_1_MAX */
 static const struct iwl_power_vec_entry range_1[IWL_POWER_NUM] = {
-	{{NOSLP, SLP_TOUT(0), SLP_TOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
 	{{SLP, SLP_TOUT(200), SLP_TOUT(500), SLP_VEC(1, 2, 3, 4, 4)}, 0},
 	{{SLP, SLP_TOUT(200), SLP_TOUT(300), SLP_VEC(1, 2, 3, 4, 7)}, 0},
 	{{SLP, SLP_TOUT(50), SLP_TOUT(100), SLP_VEC(2, 4, 6, 7, 9)}, 0},
@@ -88,9 +101,8 @@ static const struct iwl_power_vec_entry range_1[IWL_POWER_NUM] = {
 	{{SLP, SLP_TOUT(25), SLP_TOUT(25), SLP_VEC(2, 4, 7, 10, 10)}, 2}
 };
 
-/* for DTIM period > IWL_POWER_RANGE_1_MAX */
+/* for DTIM period > IWL_DTIM_RANGE_1_MAX */
 static const struct iwl_power_vec_entry range_2[IWL_POWER_NUM] = {
-	{{NOSLP, SLP_TOUT(0), SLP_TOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
 	{{SLP, SLP_TOUT(200), SLP_TOUT(500), SLP_VEC(1, 2, 3, 4, 0xFF)}, 0},
 	{{SLP, SLP_TOUT(200), SLP_TOUT(300), SLP_VEC(2, 4, 6, 7, 0xFF)}, 0},
 	{{SLP, SLP_TOUT(50), SLP_TOUT(100), SLP_VEC(2, 7, 9, 9, 0xFF)}, 0},
@@ -98,6 +110,56 @@ static const struct iwl_power_vec_entry range_2[IWL_POWER_NUM] = {
 	{{SLP, SLP_TOUT(25), SLP_TOUT(25), SLP_VEC(4, 7, 10, 10, 0xFF)}, 0}
 };
 
+static void iwl_static_sleep_cmd(struct iwl_priv *priv,
+				 struct iwl_powertable_cmd *cmd,
+				 enum iwl_power_level lvl, int period)
+{
+	const struct iwl_power_vec_entry *table;
+	int max_sleep, i;
+	bool skip;
+
+	table = range_2;
+	if (period < IWL_DTIM_RANGE_1_MAX)
+		table = range_1;
+	if (period < IWL_DTIM_RANGE_0_MAX)
+		table = range_0;
+
+	BUG_ON(lvl < 0 || lvl >= IWL_POWER_NUM);
+
+	*cmd = table[lvl].cmd;
+
+	if (period == 0) {
+		skip = false;
+		period = 1;
+	} else {
+		skip = !!table[lvl].no_dtim;
+	}
+
+	if (skip) {
+		__le32 slp_itrvl = cmd->sleep_interval[IWL_POWER_VEC_SIZE - 1];
+		max_sleep = le32_to_cpu(slp_itrvl);
+		if (max_sleep == 0xFF)
+			max_sleep = period * (skip + 1);
+		else if (max_sleep > period)
+			max_sleep = (le32_to_cpu(slp_itrvl) / period) * period;
+		cmd->flags |= IWL_POWER_SLEEP_OVER_DTIM_MSK;
+	} else {
+		max_sleep = period;
+		cmd->flags &= ~IWL_POWER_SLEEP_OVER_DTIM_MSK;
+	}
+
+	for (i = 0; i < IWL_POWER_VEC_SIZE; i++)
+		if (le32_to_cpu(cmd->sleep_interval[i]) > max_sleep)
+			cmd->sleep_interval[i] = cpu_to_le32(max_sleep);
+
+	if (priv->power_data.pci_pm)
+		cmd->flags |= IWL_POWER_PCI_PM_MSK;
+	else
+		cmd->flags &= ~IWL_POWER_PCI_PM_MSK;
+
+	IWL_DEBUG_POWER(priv, "Sleep command for index %d\n", lvl + 1);
+}
+
 /* default Thermal Throttling transaction table
  * Current state   |         Throttling Down               |  Throttling Up
  *=============================================================================
@@ -138,98 +200,44 @@ static const struct iwl_tt_restriction restriction_range[IWL_TI_STATE_MAX] = {
 	{IWL_ANT_OK_NONE, IWL_ANT_OK_NONE, false }
 };
 
-/* set card power command */
-static int iwl_set_power(struct iwl_priv *priv, void *cmd)
-{
-	return iwl_send_cmd_pdu(priv, POWER_TABLE_CMD,
-				sizeof(struct iwl_powertable_cmd), cmd);
-}
 
-/* initialize to default */
-static void iwl_power_init_handle(struct iwl_priv *priv)
+static void iwl_power_sleep_cam_cmd(struct iwl_priv *priv,
+				    struct iwl_powertable_cmd *cmd)
 {
-	struct iwl_power_mgr *pow_data;
-	int size = sizeof(struct iwl_power_vec_entry) * IWL_POWER_NUM;
-	struct iwl_powertable_cmd *cmd;
-	int i;
-	u16 lctl;
-
-	IWL_DEBUG_POWER(priv, "Initialize power \n");
-
-	pow_data = &priv->power_data;
-
-	memset(pow_data, 0, sizeof(*pow_data));
-
-	memcpy(&pow_data->pwr_range_0[0], &range_0[0], size);
-	memcpy(&pow_data->pwr_range_1[0], &range_1[0], size);
-	memcpy(&pow_data->pwr_range_2[0], &range_2[0], size);
-
-	lctl = iwl_pcie_link_ctl(priv);
+	memset(cmd, 0, sizeof(*cmd));
 
-	IWL_DEBUG_POWER(priv, "adjust power command flags\n");
+	if (priv->power_data.pci_pm)
+		cmd->flags |= IWL_POWER_PCI_PM_MSK;
 
-	for (i = 0; i < IWL_POWER_NUM; i++) {
-		cmd = &pow_data->pwr_range_0[i].cmd;
-
-		if (lctl & PCI_CFG_LINK_CTRL_VAL_L0S_EN)
-			cmd->flags &= ~IWL_POWER_PCI_PM_MSK;
-		else
-			cmd->flags |= IWL_POWER_PCI_PM_MSK;
-	}
+	IWL_DEBUG_POWER(priv, "Sleep command for CAM\n");
 }
 
-/* adjust power command according to DTIM period and power level*/
-static int iwl_update_power_cmd(struct iwl_priv *priv,
-				struct iwl_powertable_cmd *cmd, u16 mode)
+static void iwl_power_fill_sleep_cmd(struct iwl_priv *priv,
+				     struct iwl_powertable_cmd *cmd,
+				     int dynps_ms, int wakeup_period)
 {
-	struct iwl_power_vec_entry *range;
-	struct iwl_power_mgr *pow_data;
 	int i;
-	u32 max_sleep = 0;
-	u8 period;
-	bool skip;
 
-	if (mode > IWL_POWER_INDEX_5) {
-		IWL_DEBUG_POWER(priv, "Error invalid power mode \n");
-		return -EINVAL;
-	}
+	memset(cmd, 0, sizeof(*cmd));
 
-	pow_data = &priv->power_data;
+	cmd->flags = IWL_POWER_DRIVER_ALLOW_SLEEP_MSK |
+		     IWL_POWER_FAST_PD; /* no use seeing frames for others */
 
-	if (pow_data->dtim_period <= IWL_POWER_RANGE_0_MAX)
-		range = &pow_data->pwr_range_0[0];
-	else if (pow_data->dtim_period <= IWL_POWER_RANGE_1_MAX)
-		range = &pow_data->pwr_range_1[0];
-	else
-		range = &pow_data->pwr_range_2[0];
+	if (priv->power_data.pci_pm)
+		cmd->flags |= IWL_POWER_PCI_PM_MSK;
 
-	period = pow_data->dtim_period;
-	memcpy(cmd, &range[mode].cmd, sizeof(struct iwl_powertable_cmd));
-
-	if (period == 0) {
-		period = 1;
-		skip = false;
-	} else {
-		skip = !!range[mode].no_dtim;
-	}
-
-	if (skip) {
-		__le32 slp_itrvl = cmd->sleep_interval[IWL_POWER_VEC_SIZE - 1];
-		max_sleep = le32_to_cpu(slp_itrvl);
-		if (max_sleep == 0xFF)
-			max_sleep = period * (skip + 1);
-		else if (max_sleep >  period)
-			max_sleep = (le32_to_cpu(slp_itrvl) / period) * period;
-		cmd->flags |= IWL_POWER_SLEEP_OVER_DTIM_MSK;
-	} else {
-		max_sleep = period;
-		cmd->flags &= ~IWL_POWER_SLEEP_OVER_DTIM_MSK;
-	}
+	cmd->rx_data_timeout = cpu_to_le32(1000 * dynps_ms);
+	cmd->tx_data_timeout = cpu_to_le32(1000 * dynps_ms);
 
 	for (i = 0; i < IWL_POWER_VEC_SIZE; i++)
-		if (le32_to_cpu(cmd->sleep_interval[i]) > max_sleep)
-			cmd->sleep_interval[i] = cpu_to_le32(max_sleep);
+		cmd->sleep_interval[i] = cpu_to_le32(wakeup_period);
+
+	IWL_DEBUG_POWER(priv, "Automatic sleep command\n");
+}
 
+static int iwl_set_power(struct iwl_priv *priv, struct iwl_powertable_cmd *cmd)
+{
+	IWL_DEBUG_POWER(priv, "Sending power/sleep command\n");
 	IWL_DEBUG_POWER(priv, "Flags value = 0x%08X\n", cmd->flags);
 	IWL_DEBUG_POWER(priv, "Tx timeout = %u\n", le32_to_cpu(cmd->tx_data_timeout));
 	IWL_DEBUG_POWER(priv, "Rx timeout = %u\n", le32_to_cpu(cmd->rx_data_timeout));
@@ -240,50 +248,54 @@ static int iwl_update_power_cmd(struct iwl_priv *priv,
 			le32_to_cpu(cmd->sleep_interval[3]),
 			le32_to_cpu(cmd->sleep_interval[4]));
 
-	return 0;
+	return iwl_send_cmd_pdu(priv, POWER_TABLE_CMD,
+				sizeof(struct iwl_powertable_cmd), cmd);
 }
 
 
-/*
- * compute the final power mode index
- */
 int iwl_power_update_mode(struct iwl_priv *priv, bool force)
 {
-	struct iwl_power_mgr *setting = &(priv->power_data);
 	int ret = 0;
 	struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
-	u16 uninitialized_var(final_mode);
+	bool enabled = (priv->iw_mode == NL80211_IFTYPE_STATION) &&
+			(priv->hw->conf.flags & IEEE80211_CONF_PS);
 	bool update_chains;
+	struct iwl_powertable_cmd cmd;
+	int dtimper;
 
 	/* Don't update the RX chain when chain noise calibration is running */
 	update_chains = priv->chain_noise_data.state == IWL_CHAIN_NOISE_DONE ||
 			priv->chain_noise_data.state == IWL_CHAIN_NOISE_ALIVE;
 
-	final_mode = priv->power_data.user_power_setting;
-
-	if (setting->power_disabled)
-		final_mode = IWL_POWER_MODE_CAM;
+	if (priv->vif)
+		dtimper = priv->vif->bss_conf.dtim_period;
+	else
+		dtimper = 1;
+
+	/* TT power setting overwrites everything */
+	if (tt->state >= IWL_TI_1)
+		iwl_static_sleep_cmd(priv, &cmd, tt->tt_power_mode, dtimper);
+	else if (!enabled)
+		iwl_power_sleep_cam_cmd(priv, &cmd);
+	else if (priv->power_data.debug_sleep_level_override >= 0)
+		iwl_static_sleep_cmd(priv, &cmd,
+				     priv->power_data.debug_sleep_level_override,
+				     dtimper);
+	else if (no_sleep_autoadjust)
+		iwl_static_sleep_cmd(priv, &cmd, IWL_POWER_INDEX_1, dtimper);
+	else
+		iwl_power_fill_sleep_cmd(priv, &cmd,
+					 priv->hw->conf.dynamic_ps_timeout,
+					 priv->hw->conf.max_sleep_period);
 
-	if (tt->state >= IWL_TI_1) {
-		/* TT power setting overwrite user & system power setting */
-		final_mode = tt->tt_power_mode;
-	}
 	if (iwl_is_ready_rf(priv) &&
-	    ((setting->power_mode != final_mode) || force)) {
-		struct iwl_powertable_cmd cmd;
-
-		if (final_mode != IWL_POWER_MODE_CAM)
+	    (memcmp(&priv->power_data.sleep_cmd, &cmd, sizeof(cmd)) || force)) {
+		if (cmd.flags & IWL_POWER_DRIVER_ALLOW_SLEEP_MSK)
 			set_bit(STATUS_POWER_PMI, &priv->status);
 
-		iwl_update_power_cmd(priv, &cmd, final_mode);
-		cmd.keep_alive_beacons = 0;
-
-		if (final_mode == IWL_POWER_INDEX_5)
-			cmd.flags |= IWL_POWER_FAST_PD;
-
 		ret = iwl_set_power(priv, &cmd);
 		if (!ret) {
-			if (final_mode == IWL_POWER_MODE_CAM)
+			if (!(cmd.flags & IWL_POWER_DRIVER_ALLOW_SLEEP_MSK))
 				clear_bit(STATUS_POWER_PMI, &priv->status);
 
 			if (priv->cfg->ops->lib->update_chain_flags &&
@@ -294,7 +306,7 @@ int iwl_power_update_mode(struct iwl_priv *priv, bool force)
 					"Cannot update the power, chain noise "
 					"calibration running: %d\n",
 					priv->chain_noise_data.state);
-			setting->power_mode = final_mode;
+			memcpy(&priv->power_data.sleep_cmd, &cmd, sizeof(cmd));
 		} else
 			IWL_ERR(priv, "set power fail, ret = %d", ret);
 	}
@@ -303,18 +315,6 @@ int iwl_power_update_mode(struct iwl_priv *priv, bool force)
 }
 EXPORT_SYMBOL(iwl_power_update_mode);
 
-/* set user_power_setting */
-int iwl_power_set_user_mode(struct iwl_priv *priv, u16 mode)
-{
-	if (mode >= IWL_POWER_NUM)
-		return -EINVAL;
-
-	priv->power_data.user_power_setting = mode;
-
-	return iwl_power_update_mode(priv, 0);
-}
-EXPORT_SYMBOL(iwl_power_set_user_mode);
-
 bool iwl_ht_enabled(struct iwl_priv *priv)
 {
 	struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
@@ -349,7 +349,6 @@ enum iwl_antenna_ok iwl_rx_ant_restriction(struct iwl_priv *priv)
 	restriction = tt->restriction + tt->state;
 	return restriction->rx_stream;
 }
-EXPORT_SYMBOL(iwl_rx_ant_restriction);
 
 #define CT_KILL_EXIT_DURATION (5)	/* 5 seconds duration */
 
@@ -429,7 +428,6 @@ static void iwl_legacy_tt_handler(struct iwl_priv *priv, s32 temp)
 {
 	struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
 	enum iwl_tt_state old_state;
-	struct iwl_power_mgr *setting = &priv->power_data;
 
 #ifdef CONFIG_IWLWIFI_DEBUG
 	if ((tt->tt_previous_temp) &&
@@ -456,24 +454,13 @@ static void iwl_legacy_tt_handler(struct iwl_priv *priv, s32 temp)
 	tt->tt_previous_temp = temp;
 #endif
 	if (tt->state != old_state) {
-		if (old_state == IWL_TI_0) {
-			tt->sys_power_mode = setting->power_mode;
-			IWL_DEBUG_POWER(priv, "current power mode: %u\n",
-				setting->power_mode);
-		}
 		switch (tt->state) {
 		case IWL_TI_0:
-			/* when system ready to go back to IWL_TI_0 state
-			 * using system power mode instead of TT power mode
-			 * revert back to the orginal power mode which was saved
-			 * before enter Thermal Throttling state
-			 * update priv->power_data.user_power_setting to the
-			 * required power mode to make sure
-			 * iwl_power_update_mode() will update power correctly.
+			/*
+			 * When the system is ready to go back to IWL_TI_0
+			 * we only have to call iwl_power_update_mode() to
+			 * do so.
 			 */
-			priv->power_data.user_power_setting =
-				tt->sys_power_mode;
-			tt->tt_power_mode = tt->sys_power_mode;
 			break;
 		case IWL_TI_1:
 			tt->tt_power_mode = IWL_POWER_INDEX_3;
@@ -576,13 +563,8 @@ static void iwl_advance_tt_handler(struct iwl_priv *priv, s32 temp)
 	}
 	if (changed) {
 		struct iwl_rxon_cmd *rxon = &priv->staging_rxon;
-		struct iwl_power_mgr *setting = &priv->power_data;
 
 		if (tt->state >= IWL_TI_1) {
-			/* if switching from IWL_TI_0 to other TT state
-			 * save previous power setting in tt->sys_power_mode */
-			if (old_state == IWL_TI_0)
-				tt->sys_power_mode = setting->power_mode;
 			/* force PI = IWL_POWER_INDEX_5 in the case of TI > 0 */
 			tt->tt_power_mode = IWL_POWER_INDEX_5;
 			if (!iwl_ht_enabled(priv))
@@ -599,17 +581,11 @@ static void iwl_advance_tt_handler(struct iwl_priv *priv, s32 temp)
 			}
 
 		} else {
-			/* restore system power setting */
-			/* the previous power mode was saved in
-			 * tt->sys_power_mode when system move into
-			 * Thermal Throttling state
-			 * set power_data.user_power_setting to the previous
-			 * system power mode to make sure power will get
-			 * updated correctly
+			/*
+			 * restore system power setting -- it will be
+			 * recalculated automatically.
 			 */
-			priv->power_data.user_power_setting =
-				tt->sys_power_mode;
-			tt->tt_power_mode = tt->sys_power_mode;
+
 			/* check HT capability and set
 			 * according to the system HT capability
 			 * in case get disabled before */
@@ -761,7 +737,6 @@ EXPORT_SYMBOL(iwl_tt_handler);
 void iwl_tt_initialize(struct iwl_priv *priv)
 {
 	struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
-	struct iwl_power_mgr *setting = &priv->power_data;
 	int size = sizeof(struct iwl_tt_trans) * (IWL_TI_STATE_MAX - 1);
 	struct iwl_tt_trans *transaction;
 
@@ -770,8 +745,6 @@ void iwl_tt_initialize(struct iwl_priv *priv)
 	memset(tt, 0, sizeof(struct iwl_tt_mgmt));
 
 	tt->state = IWL_TI_0;
-	tt->sys_power_mode = setting->power_mode;
-	tt->tt_power_mode = tt->sys_power_mode;
 	init_timer(&priv->thermal_throttle.ct_kill_exit_tm);
 	priv->thermal_throttle.ct_kill_exit_tm.data = (unsigned long)priv;
 	priv->thermal_throttle.ct_kill_exit_tm.function = iwl_tt_check_exit_ct_kill;
@@ -849,9 +822,13 @@ EXPORT_SYMBOL(iwl_tt_exit);
 /* initialize to default */
 void iwl_power_initialize(struct iwl_priv *priv)
 {
-	iwl_power_init_handle(priv);
-	priv->power_data.user_power_setting = IWL_POWER_INDEX_1;
-	/* default to disabled until mac80211 says otherwise */
-	priv->power_data.power_disabled = 1;
+	u16 lctl = iwl_pcie_link_ctl(priv);
+
+	priv->power_data.pci_pm = !(lctl & PCI_CFG_LINK_CTRL_VAL_L0S_EN);
+
+	priv->power_data.debug_sleep_level_override = -1;
+
+	memset(&priv->power_data.sleep_cmd, 0,
+		sizeof(priv->power_data.sleep_cmd));
 }
 EXPORT_SYMBOL(iwl_power_initialize);
diff --git a/drivers/net/wireless/iwlwifi/iwl-power.h b/drivers/net/wireless/iwlwifi/iwl-power.h
index 15e3eabd2e84..df6f6a49712b 100644
--- a/drivers/net/wireless/iwlwifi/iwl-power.h
+++ b/drivers/net/wireless/iwlwifi/iwl-power.h
@@ -28,11 +28,8 @@
 #ifndef __iwl_power_setting_h__
 #define __iwl_power_setting_h__
 
-#include <net/mac80211.h>
 #include "iwl-commands.h"
 
-struct iwl_priv;
-
 #define IWL_ABSOLUTE_ZERO		0
 #define IWL_ABSOLUTE_MAX		0xFFFFFFFF
 #define IWL_TT_INCREASE_MARGIN	5
@@ -93,8 +90,6 @@ struct iwl_tt_trans {
  * 		    when thermal throttling state != IWL_TI_0
  *		    the tt_power_mode should set to different
  *		    power mode based on the current tt state
- * @sys_power_mode: previous system power mode
- *                  before transition into TT state
  * @tt_previous_temperature: last measured temperature
  * @iwl_tt_restriction: ptr to restriction tbl, used by advance
  *		    thermal throttling to determine how many tx/rx streams
@@ -108,7 +103,6 @@ struct iwl_tt_mgmt {
 	enum iwl_tt_state state;
 	bool advanced_tt;
 	u8 tt_power_mode;
-	u8 sys_power_mode;
 	bool ct_kill_toggle;
 #ifdef CONFIG_IWLWIFI_DEBUG
 	s32 tt_previous_temp;
@@ -118,8 +112,7 @@ struct iwl_tt_mgmt {
 	struct timer_list ct_kill_exit_tm;
 };
 
-enum {
-	IWL_POWER_MODE_CAM, /* Continuously Aware Mode, always on */
+enum iwl_power_level {
 	IWL_POWER_INDEX_1,
 	IWL_POWER_INDEX_2,
 	IWL_POWER_INDEX_3,
@@ -128,26 +121,13 @@ enum {
 	IWL_POWER_NUM
 };
 
-/* Power management (not Tx power) structures */
-
-struct iwl_power_vec_entry {
-	struct iwl_powertable_cmd cmd;
-	u8 no_dtim;
-};
-
 struct iwl_power_mgr {
-	struct iwl_power_vec_entry pwr_range_0[IWL_POWER_NUM];
-	struct iwl_power_vec_entry pwr_range_1[IWL_POWER_NUM];
-	struct iwl_power_vec_entry pwr_range_2[IWL_POWER_NUM];
-	u32 dtim_period;
-	/* final power level that used to calculate final power command */
-	u8 power_mode;
-	u8 user_power_setting; /* set by user through sysfs */
-	u8 power_disabled; /* set by mac80211's CONF_PS */
+	struct iwl_powertable_cmd sleep_cmd;
+	int debug_sleep_level_override;
+	bool pci_pm;
 };
 
 int iwl_power_update_mode(struct iwl_priv *priv, bool force);
-int iwl_power_set_user_mode(struct iwl_priv *priv, u16 mode);
 bool iwl_ht_enabled(struct iwl_priv *priv);
 enum iwl_antenna_ok iwl_tx_ant_restriction(struct iwl_priv *priv);
 enum iwl_antenna_ok iwl_rx_ant_restriction(struct iwl_priv *priv);
@@ -158,4 +138,6 @@ void iwl_tt_initialize(struct iwl_priv *priv);
 void iwl_tt_exit(struct iwl_priv *priv);
 void iwl_power_initialize(struct iwl_priv *priv);
 
+extern bool no_sleep_autoadjust;
+
 #endif  /* __iwl_power_setting_h__ */
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index e5fa672e8390..e617411d0c5e 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -3554,65 +3554,6 @@ static DEVICE_ATTR(retry_rate, S_IWUSR | S_IRUSR, show_retry_rate,
 		   store_retry_rate);
 
 
-static ssize_t store_power_level(struct device *d,
-				 struct device_attribute *attr,
-				 const char *buf, size_t count)
-{
-	struct iwl_priv *priv = dev_get_drvdata(d);
-	int ret;
-	unsigned long mode;
-
-
-	mutex_lock(&priv->mutex);
-
-	ret = strict_strtoul(buf, 10, &mode);
-	if (ret)
-		goto out;
-
-	ret = iwl_power_set_user_mode(priv, mode);
-	if (ret) {
-		IWL_DEBUG_MAC80211(priv, "failed setting power mode.\n");
-		goto out;
-	}
-	ret = count;
-
- out:
-	mutex_unlock(&priv->mutex);
-	return ret;
-}
-
-static ssize_t show_power_level(struct device *d,
-				struct device_attribute *attr, char *buf)
-{
-	struct iwl_priv *priv = dev_get_drvdata(d);
-	int level = priv->power_data.power_mode;
-	char *p = buf;
-
-	p += sprintf(p, "%d\n", level);
-	return p - buf + 1;
-}
-
-static DEVICE_ATTR(power_level, S_IWUSR | S_IRUSR,
-		   show_power_level, store_power_level);
-
-#define MAX_WX_STRING 80
-
-/* Values are in microsecond */
-static const s32 timeout_duration[] = {
-	350000,
-	250000,
-	75000,
-	37000,
-	25000,
-};
-static const s32 period_duration[] = {
-	400000,
-	700000,
-	1000000,
-	1000000,
-	1000000
-};
-
 static ssize_t show_channels(struct device *d,
 			     struct device_attribute *attr, char *buf)
 {
@@ -3789,7 +3730,6 @@ static struct attribute *iwl3945_sysfs_entries[] = {
 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
 	&dev_attr_measurement.attr,
 #endif
-	&dev_attr_power_level.attr,
 	&dev_attr_retry_rate.attr,
 	&dev_attr_statistics.attr,
 	&dev_attr_status.attr,
@@ -3854,8 +3794,6 @@ static int iwl3945_init_drv(struct iwl_priv *priv)
 	priv->qos_data.qos_cap.val = 0;
 
 	priv->rates_mask = IWL_RATES_MASK;
-	/* If power management is turned on, default to CAM mode */
-	priv->power_mode = IWL_POWER_MODE_CAM;
 	priv->tx_power_user_lmt = IWL_DEFAULT_TX_POWER;
 
 	if (eeprom->version < EEPROM_3945_EEPROM_VERSION) {
@@ -3902,7 +3840,9 @@ static int iwl3945_setup_mac(struct iwl_priv *priv)
 	/* Tell mac80211 our characteristics */
 	hw->flags = IEEE80211_HW_SIGNAL_DBM |
 		    IEEE80211_HW_NOISE_DBM |
-		    IEEE80211_HW_SPECTRUM_MGMT;
+		    IEEE80211_HW_SPECTRUM_MGMT |
+		    IEEE80211_HW_SUPPORTS_PS |
+		    IEEE80211_HW_SUPPORTS_DYNAMIC_PS;
 
 	hw->wiphy->interface_modes =
 		BIT(NL80211_IFTYPE_STATION) |
-- 
cgit v1.2.3


From aae79e648d93bc9d6b3581ab4eb88e2ac44f5c46 Mon Sep 17 00:00:00 2001
From: Kalle Valo <kalle.valo@iki.fi>
Date: Wed, 12 Aug 2009 14:07:27 +0300
Subject: iwl3945: fix compilation error in iwl3945_pass_packet_to_mac80211()

Commit "iwlwifi: Traffic type and counter for debugFs" broke iwl3945 in
a case when CONFIG_IWLWIFI_LEDS is disabled:

drivers/net/wireless/iwlwifi/iwl-3945.c:580: error: 'hdr' undeclared (first use in this function)

Fix it by removing the ifdef check for hdr variable.

Signed-off-by: Kalle Valo <kalle.valo@iki.fi>
Acked-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-3945.c | 2 --
 1 file changed, 2 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c
index ae7f1632ccbf..ba5ef832d770 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945.c
@@ -544,9 +544,7 @@ static void iwl3945_pass_packet_to_mac80211(struct iwl_priv *priv,
 				   struct ieee80211_rx_status *stats)
 {
 	struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
-#ifdef CONFIG_IWLWIFI_LEDS
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)IWL_RX_DATA(pkt);
-#endif
 	struct iwl3945_rx_frame_hdr *rx_hdr = IWL_RX_HDR(pkt);
 	struct iwl3945_rx_frame_end *rx_end = IWL_RX_END(pkt);
 	short len = le16_to_cpu(rx_hdr->len);
-- 
cgit v1.2.3


From e6a6cf4c42e0dc3541a63b5f0f88299f982d6704 Mon Sep 17 00:00:00 2001
From: Reinette Chatre <reinette.chatre@intel.com>
Date: Thu, 13 Aug 2009 13:30:50 -0700
Subject: iwlwifi: prevent read outside array bounds

With EDCA and HCCA we have 16 potential tid values. This is accommodated by
mac80211, but iwlwifi only supports EDCA. With this implementation it is
thus possible for mac80211 to request a tid that will cause iwlwifi to read
outside array bounds. A similar problem exists if traffic is received in an
unsupported category.

We add error checking to catch these situations.

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-agn-rs.c   | 3 +++
 drivers/net/wireless/iwlwifi/iwl-tx.c       | 5 +++++
 drivers/net/wireless/iwlwifi/iwl3945-base.c | 2 ++
 3 files changed, 10 insertions(+)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
index 21331552ff2c..1bd7cd4dd809 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
@@ -332,6 +332,9 @@ static u8 rs_tl_add_packet(struct iwl_lq_sta *lq_data,
 	} else
 		return MAX_TID_COUNT;
 
+	if (unlikely(tid >= TID_MAX_LOAD_COUNT))
+		return MAX_TID_COUNT;
+
 	tl = &lq_data->load[tid];
 
 	curr_time -= curr_time % TID_ROUND_VALUE;
diff --git a/drivers/net/wireless/iwlwifi/iwl-tx.c b/drivers/net/wireless/iwlwifi/iwl-tx.c
index 9b76bd41f214..7686fc72eb89 100644
--- a/drivers/net/wireless/iwlwifi/iwl-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-tx.c
@@ -745,6 +745,8 @@ int iwl_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
 	if (ieee80211_is_data_qos(fc)) {
 		qc = ieee80211_get_qos_ctl(hdr);
 		tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK;
+		if (unlikely(tid >= MAX_TID_COUNT))
+			goto drop_unlock;
 		seq_number = priv->stations[sta_id].tid[tid].seq_number;
 		seq_number &= IEEE80211_SCTL_SEQ;
 		hdr->seq_ctrl = hdr->seq_ctrl &
@@ -1238,6 +1240,9 @@ int iwl_tx_agg_stop(struct iwl_priv *priv , const u8 *ra, u16 tid)
 		return -EINVAL;
 	}
 
+	if (unlikely(tid >= MAX_TID_COUNT))
+		return -EINVAL;
+
 	if (likely(tid < ARRAY_SIZE(default_tid_to_tx_fifo)))
 		tx_fifo_id = default_tid_to_tx_fifo[tid];
 	else
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index e617411d0c5e..f339c5bd1fde 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -544,6 +544,8 @@ static int iwl3945_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
 	if (ieee80211_is_data_qos(fc)) {
 		qc = ieee80211_get_qos_ctl(hdr);
 		tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK;
+		if (unlikely(tid >= MAX_TID_COUNT))
+			goto drop;
 		seq_number = priv->stations[sta_id].tid[tid].seq_number &
 				IEEE80211_SCTL_SEQ;
 		hdr->seq_ctrl = cpu_to_le16(seq_number) |
-- 
cgit v1.2.3


From be2527654fab254beda8612cbd6bc927dc98fbee Mon Sep 17 00:00:00 2001
From: Daniel C Halperin <daniel.c.halperin@intel.com>
Date: Thu, 13 Aug 2009 13:30:51 -0700
Subject: iwlwifi: remove unused HT configuration entry tx_chan_width

The tx_chan_width entry is never used, supported_chan_width is used instead.

Signed-off-by: Daniel C Halperin <daniel.c.halperin@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-core.c | 1 -
 drivers/net/wireless/iwlwifi/iwl-dev.h  | 1 -
 2 files changed, 2 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index af735128333a..479b7e165b09 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -2423,7 +2423,6 @@ static void iwl_ht_conf(struct iwl_priv *priv,
 
 	memcpy(&iwl_conf->mcs, &ht_conf->mcs, 16);
 
-	iwl_conf->tx_chan_width = iwl_conf->supported_chan_width != 0;
 	iwl_conf->ht_protection =
 		bss_conf->ht_operation_mode & IEEE80211_HT_OP_MODE_PROTECTION;
 	iwl_conf->non_GF_STA_present =
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index b96c3c9e92a9..c34f9d73306d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -515,7 +515,6 @@ struct iwl_ht_info {
 	struct ieee80211_mcs_info mcs;
 	/* BSS related data */
 	u8 extension_chan_offset;
-	u8 tx_chan_width;
 	u8 ht_protection;
 	u8 non_GF_STA_present;
 };
-- 
cgit v1.2.3


From 7869b0eaed0447a989d8672eed27a358aa5dde0c Mon Sep 17 00:00:00 2001
From: Daniel C Halperin <daniel.c.halperin@intel.com>
Date: Thu, 13 Aug 2009 13:30:52 -0700
Subject: iwlwifi: include HT configuration when adding stations through
 rs_rate_init

Driver's first notification of a new station from mac80211 can be through rate
selection API.  This patch fixes a bug where, in this code path, the HT
capabilities of the new station were ignored.

Signed-off-by: Daniel C Halperin <daniel.c.halperin@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-agn-rs.c | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
index 1bd7cd4dd809..551c4ba3f178 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
@@ -2522,6 +2522,7 @@ static void rs_get_rate(void *priv_r, struct ieee80211_sta *sta, void *priv_sta,
 	struct ieee80211_supported_band *sband = txrc->sband;
 	struct iwl_priv *priv = (struct iwl_priv *)priv_r;
 	struct ieee80211_conf *conf = &priv->hw->conf;
+	struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap;
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 	struct iwl_lq_sta *lq_sta = priv_sta;
@@ -2554,7 +2555,7 @@ static void rs_get_rate(void *priv_r, struct ieee80211_sta *sta, void *priv_sta,
 			IWL_DEBUG_RATE(priv, "LQ: ADD station %pM\n",
 				       hdr->addr1);
 			sta_id = iwl_add_station(priv, hdr->addr1,
-						false, CMD_ASYNC, NULL);
+						false, CMD_ASYNC, ht_cap);
 		}
 		if ((sta_id != IWL_INVALID_STATION)) {
 			lq_sta->lq.sta_id = sta_id;
@@ -2623,6 +2624,7 @@ static void rs_rate_init(void *priv_r, struct ieee80211_supported_band *sband,
 	int i, j;
 	struct iwl_priv *priv = (struct iwl_priv *)priv_r;
 	struct ieee80211_conf *conf = &priv->hw->conf;
+	struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap;
 	struct iwl_lq_sta *lq_sta = priv_sta;
 	u16 mask_bit = 0;
 	int count;
@@ -2651,7 +2653,7 @@ static void rs_rate_init(void *priv_r, struct ieee80211_supported_band *sband,
 		if (sta_id == IWL_INVALID_STATION) {
 			IWL_DEBUG_RATE(priv, "LQ: ADD station %pM\n", sta->addr);
 			sta_id = iwl_add_station(priv, sta->addr, false,
-						CMD_ASYNC, NULL);
+						CMD_ASYNC, ht_cap);
 		}
 		if ((sta_id != IWL_INVALID_STATION)) {
 			lq_sta->lq.sta_id = sta_id;
@@ -2672,19 +2674,19 @@ static void rs_rate_init(void *priv_r, struct ieee80211_supported_band *sband,
 	 * active_siso_rate mask includes 9 MBits (bit 5), and CCK (bits 0-3),
 	 * supp_rates[] does not; shift to convert format, force 9 MBits off.
 	 */
-	lq_sta->active_siso_rate = sta->ht_cap.mcs.rx_mask[0] << 1;
-	lq_sta->active_siso_rate |= sta->ht_cap.mcs.rx_mask[0] & 0x1;
+	lq_sta->active_siso_rate = ht_cap->mcs.rx_mask[0] << 1;
+	lq_sta->active_siso_rate |= ht_cap->mcs.rx_mask[0] & 0x1;
 	lq_sta->active_siso_rate &= ~((u16)0x2);
 	lq_sta->active_siso_rate <<= IWL_FIRST_OFDM_RATE;
 
 	/* Same here */
-	lq_sta->active_mimo2_rate = sta->ht_cap.mcs.rx_mask[1] << 1;
-	lq_sta->active_mimo2_rate |= sta->ht_cap.mcs.rx_mask[1] & 0x1;
+	lq_sta->active_mimo2_rate = ht_cap->mcs.rx_mask[1] << 1;
+	lq_sta->active_mimo2_rate |= ht_cap->mcs.rx_mask[1] & 0x1;
 	lq_sta->active_mimo2_rate &= ~((u16)0x2);
 	lq_sta->active_mimo2_rate <<= IWL_FIRST_OFDM_RATE;
 
-	lq_sta->active_mimo3_rate = sta->ht_cap.mcs.rx_mask[2] << 1;
-	lq_sta->active_mimo3_rate |= sta->ht_cap.mcs.rx_mask[2] & 0x1;
+	lq_sta->active_mimo3_rate = ht_cap->mcs.rx_mask[2] << 1;
+	lq_sta->active_mimo3_rate |= ht_cap->mcs.rx_mask[2] & 0x1;
 	lq_sta->active_mimo3_rate &= ~((u16)0x2);
 	lq_sta->active_mimo3_rate <<= IWL_FIRST_OFDM_RATE;
 
-- 
cgit v1.2.3


From 3b24716fc978db9c27c4a069e5201460479340a4 Mon Sep 17 00:00:00 2001
From: Zhu Yi <yi.zhu@intel.com>
Date: Thu, 13 Aug 2009 13:30:53 -0700
Subject: iwlwifi: cleanup HT40 extension channels setup

The patch cleans up the HT40 extension channels setup for EEPROM
band 6 and 7 to make it more readable.

Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-eeprom.c | 37 ++++++++++---------------------
 1 file changed, 12 insertions(+), 25 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-eeprom.c b/drivers/net/wireless/iwlwifi/iwl-eeprom.c
index 78c4a324a3b5..ded63320a463 100644
--- a/drivers/net/wireless/iwlwifi/iwl-eeprom.c
+++ b/drivers/net/wireless/iwlwifi/iwl-eeprom.c
@@ -484,14 +484,14 @@ static void iwl_init_band_reference(const struct iwl_priv *priv,
 			    ? # x " " : "")
 
 /**
- * iwl_set_ht40_chan_info - Copy ht40 channel info into driver's priv.
+ * iwl_mod_ht40_chan_info - Copy ht40 channel info into driver's priv.
  *
  * Does not set up a command, or touch hardware.
  */
-static int iwl_set_ht40_chan_info(struct iwl_priv *priv,
+static int iwl_mod_ht40_chan_info(struct iwl_priv *priv,
 			      enum ieee80211_band band, u16 channel,
 			      const struct iwl_eeprom_channel *eeprom_ch,
-			      u8 ht40_extension_channel)
+			      u8 clear_ht40_extension_channel)
 {
 	struct iwl_channel_info *ch_info;
 
@@ -523,7 +523,7 @@ static int iwl_set_ht40_chan_info(struct iwl_priv *priv,
 	ch_info->ht40_min_power = 0;
 	ch_info->ht40_scan_power = eeprom_ch->max_power_avg;
 	ch_info->ht40_flags = eeprom_ch->flags;
-	ch_info->ht40_extension_channel = ht40_extension_channel;
+	ch_info->ht40_extension_channel &= ~clear_ht40_extension_channel;
 
 	return 0;
 }
@@ -592,8 +592,7 @@ int iwl_init_channel_map(struct iwl_priv *priv)
 			/* First write that ht40 is not enabled, and then enable
 			 * one by one */
 			ch_info->ht40_extension_channel =
-				(IEEE80211_CHAN_NO_HT40PLUS |
-				 IEEE80211_CHAN_NO_HT40MINUS);
+					IEEE80211_CHAN_NO_HT40;
 
 			if (!(is_channel_valid(ch_info))) {
 				IWL_DEBUG_INFO(priv, "Ch. %d Flags %x [%sGHz] - "
@@ -652,7 +651,6 @@ int iwl_init_channel_map(struct iwl_priv *priv)
 	/* Two additional EEPROM bands for 2.4 and 5 GHz HT40 channels */
 	for (band = 6; band <= 7; band++) {
 		enum ieee80211_band ieeeband;
-		u8 ht40_extension_chan;
 
 		iwl_init_band_reference(priv, band, &eeprom_ch_count,
 					&eeprom_ch_info, &eeprom_ch_index);
@@ -663,28 +661,17 @@ int iwl_init_channel_map(struct iwl_priv *priv)
 
 		/* Loop through each band adding each of the channels */
 		for (ch = 0; ch < eeprom_ch_count; ch++) {
-
-			if ((band == 6) &&
-				((eeprom_ch_index[ch] == 5) ||
-				 (eeprom_ch_index[ch] == 6) ||
-				 (eeprom_ch_index[ch] == 7)))
-				/* both are allowed: above and below */
-				ht40_extension_chan = 0;
-			else
-				ht40_extension_chan =
-					IEEE80211_CHAN_NO_HT40MINUS;
-
 			/* Set up driver's info for lower half */
-			iwl_set_ht40_chan_info(priv, ieeeband,
+			iwl_mod_ht40_chan_info(priv, ieeeband,
 						eeprom_ch_index[ch],
-						&(eeprom_ch_info[ch]),
-						ht40_extension_chan);
+						&eeprom_ch_info[ch],
+						IEEE80211_CHAN_NO_HT40PLUS);
 
 			/* Set up driver's info for upper half */
-			iwl_set_ht40_chan_info(priv, ieeeband,
-						(eeprom_ch_index[ch] + 4),
-						&(eeprom_ch_info[ch]),
-						IEEE80211_CHAN_NO_HT40PLUS);
+			iwl_mod_ht40_chan_info(priv, ieeeband,
+						eeprom_ch_index[ch] + 4,
+						&eeprom_ch_info[ch],
+						IEEE80211_CHAN_NO_HT40MINUS);
 		}
 	}
 
-- 
cgit v1.2.3


From 415e49936b4b29b34c2fb561eeab867d41fc43a6 Mon Sep 17 00:00:00 2001
From: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Date: Thu, 13 Aug 2009 13:30:54 -0700
Subject: iwlwifi: traverse linklist to find the valid OTP block

For devices using OTP memory, EEPROM image can start from
any one of the OTP blocks. If shadow RAM is disabled, we need to
traverse link list to find the last valid block, then start the EEPROM
image reading.

If OTP is not full, the valid block is the block _before_ the last block
on the link list; the last block on the link list is the empty block
ready for next OTP refresh/update.

If OTP is full, then the last block is the valid block to be used for
configure the device.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-1000.c   |   4 +-
 drivers/net/wireless/iwlwifi/iwl-6000.c   |  20 +++-
 drivers/net/wireless/iwlwifi/iwl-core.h   |   4 +
 drivers/net/wireless/iwlwifi/iwl-dev.h    |  11 ++
 drivers/net/wireless/iwlwifi/iwl-eeprom.c | 185 ++++++++++++++++++++++++------
 drivers/net/wireless/iwlwifi/iwl-eeprom.h |  10 +-
 6 files changed, 191 insertions(+), 43 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-1000.c b/drivers/net/wireless/iwlwifi/iwl-1000.c
index 191718a0c545..9bb6a287eaee 100644
--- a/drivers/net/wireless/iwlwifi/iwl-1000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-1000.c
@@ -149,12 +149,14 @@ struct iwl_cfg iwl1000_bgn_cfg = {
 	.ucode_api_min = IWL1000_UCODE_API_MIN,
 	.sku = IWL_SKU_G|IWL_SKU_N,
 	.ops = &iwl1000_ops,
-	.eeprom_size = IWL_5000_EEPROM_IMG_SIZE,
+	.eeprom_size = OTP_LOW_IMAGE_SIZE,
 	.eeprom_ver = EEPROM_5000_EEPROM_VERSION,
 	.eeprom_calib_ver = EEPROM_5000_TX_POWER_VERSION,
 	.mod_params = &iwl50_mod_params,
 	.valid_tx_ant = ANT_A,
 	.valid_rx_ant = ANT_AB,
 	.need_pll_cfg = true,
+	.max_ll_items = OTP_MAX_LL_ITEMS_1000,
+	.shadow_ram_support = false,
 };
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-6000.c b/drivers/net/wireless/iwlwifi/iwl-6000.c
index c3ec6c20cc94..0b731fd5ad1c 100644
--- a/drivers/net/wireless/iwlwifi/iwl-6000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-6000.c
@@ -161,7 +161,7 @@ struct iwl_cfg iwl6000h_2agn_cfg = {
 	.ucode_api_min = IWL6000_UCODE_API_MIN,
 	.sku = IWL_SKU_A|IWL_SKU_G|IWL_SKU_N,
 	.ops = &iwl6000_ops,
-	.eeprom_size = IWL_5000_EEPROM_IMG_SIZE,
+	.eeprom_size = OTP_LOW_IMAGE_SIZE,
 	.eeprom_ver = EEPROM_5000_EEPROM_VERSION,
 	.eeprom_calib_ver = EEPROM_5000_TX_POWER_VERSION,
 	.mod_params = &iwl50_mod_params,
@@ -169,6 +169,8 @@ struct iwl_cfg iwl6000h_2agn_cfg = {
 	.valid_rx_ant = ANT_AB,
 	.need_pll_cfg = false,
 	.pa_type = IWL_PA_HYBRID,
+	.max_ll_items = OTP_MAX_LL_ITEMS_6x00,
+	.shadow_ram_support = true,
 };
 
 /*
@@ -181,7 +183,7 @@ struct iwl_cfg iwl6000i_2agn_cfg = {
 	.ucode_api_min = IWL6000_UCODE_API_MIN,
 	.sku = IWL_SKU_A|IWL_SKU_G|IWL_SKU_N,
 	.ops = &iwl6000_ops,
-	.eeprom_size = IWL_5000_EEPROM_IMG_SIZE,
+	.eeprom_size = OTP_LOW_IMAGE_SIZE,
 	.eeprom_ver = EEPROM_5000_EEPROM_VERSION,
 	.eeprom_calib_ver = EEPROM_5000_TX_POWER_VERSION,
 	.mod_params = &iwl50_mod_params,
@@ -189,6 +191,8 @@ struct iwl_cfg iwl6000i_2agn_cfg = {
 	.valid_rx_ant = ANT_BC,
 	.need_pll_cfg = false,
 	.pa_type = IWL_PA_INTERNAL,
+	.max_ll_items = OTP_MAX_LL_ITEMS_6x00,
+	.shadow_ram_support = true,
 };
 
 struct iwl_cfg iwl6050_2agn_cfg = {
@@ -198,7 +202,7 @@ struct iwl_cfg iwl6050_2agn_cfg = {
 	.ucode_api_min = IWL6050_UCODE_API_MIN,
 	.sku = IWL_SKU_A|IWL_SKU_G|IWL_SKU_N,
 	.ops = &iwl6000_ops,
-	.eeprom_size = IWL_5000_EEPROM_IMG_SIZE,
+	.eeprom_size = OTP_LOW_IMAGE_SIZE,
 	.eeprom_ver = EEPROM_5000_EEPROM_VERSION,
 	.eeprom_calib_ver = EEPROM_5000_TX_POWER_VERSION,
 	.mod_params = &iwl50_mod_params,
@@ -206,6 +210,8 @@ struct iwl_cfg iwl6050_2agn_cfg = {
 	.valid_rx_ant = ANT_AB,
 	.need_pll_cfg = false,
 	.pa_type = IWL_PA_SYSTEM,
+	.max_ll_items = OTP_MAX_LL_ITEMS_6x00,
+	.shadow_ram_support = true,
 };
 
 struct iwl_cfg iwl6000_3agn_cfg = {
@@ -215,7 +221,7 @@ struct iwl_cfg iwl6000_3agn_cfg = {
 	.ucode_api_min = IWL6000_UCODE_API_MIN,
 	.sku = IWL_SKU_A|IWL_SKU_G|IWL_SKU_N,
 	.ops = &iwl6000_ops,
-	.eeprom_size = IWL_5000_EEPROM_IMG_SIZE,
+	.eeprom_size = OTP_LOW_IMAGE_SIZE,
 	.eeprom_ver = EEPROM_5000_EEPROM_VERSION,
 	.eeprom_calib_ver = EEPROM_5000_TX_POWER_VERSION,
 	.mod_params = &iwl50_mod_params,
@@ -223,6 +229,8 @@ struct iwl_cfg iwl6000_3agn_cfg = {
 	.valid_rx_ant = ANT_ABC,
 	.need_pll_cfg = false,
 	.pa_type = IWL_PA_SYSTEM,
+	.max_ll_items = OTP_MAX_LL_ITEMS_6x00,
+	.shadow_ram_support = true,
 };
 
 struct iwl_cfg iwl6050_3agn_cfg = {
@@ -232,7 +240,7 @@ struct iwl_cfg iwl6050_3agn_cfg = {
 	.ucode_api_min = IWL6050_UCODE_API_MIN,
 	.sku = IWL_SKU_A|IWL_SKU_G|IWL_SKU_N,
 	.ops = &iwl6000_ops,
-	.eeprom_size = IWL_5000_EEPROM_IMG_SIZE,
+	.eeprom_size = OTP_LOW_IMAGE_SIZE,
 	.eeprom_ver = EEPROM_5000_EEPROM_VERSION,
 	.eeprom_calib_ver = EEPROM_5000_TX_POWER_VERSION,
 	.mod_params = &iwl50_mod_params,
@@ -240,6 +248,8 @@ struct iwl_cfg iwl6050_3agn_cfg = {
 	.valid_rx_ant = ANT_ABC,
 	.need_pll_cfg = false,
 	.pa_type = IWL_PA_SYSTEM,
+	.max_ll_items = OTP_MAX_LL_ITEMS_6x00,
+	.shadow_ram_support = true,
 };
 
 MODULE_FIRMWARE(IWL6000_MODULE_FIRMWARE(IWL6000_UCODE_API_MAX));
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h
index 32750f4f1ce1..509683487e0e 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.h
+++ b/drivers/net/wireless/iwlwifi/iwl-core.h
@@ -209,6 +209,8 @@ struct iwl_mod_params {
  * @ucode_api_max: Highest version of uCode API supported by driver.
  * @ucode_api_min: Lowest version of uCode API supported by driver.
  * @pa_type: used by 6000 series only to identify the type of Power Amplifier
+ * @max_ll_items: max number of OTP blocks
+ * @shadow_ram_support: shadow support for OTP memory
  *
  * We enable the driver to be backward compatible wrt API version. The
  * driver specifies which APIs it supports (with @ucode_api_max being the
@@ -247,6 +249,8 @@ struct iwl_cfg {
 	bool need_pll_cfg;
 	bool use_isr_legacy;
 	enum iwl_pa_type pa_type;
+	const u16 max_ll_items;
+	const bool shadow_ram_support;
 };
 
 /***************************
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index c34f9d73306d..0b19a6f93c84 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -887,6 +887,17 @@ enum iwl_nvm_type {
 	NVM_DEVICE_TYPE_OTP,
 };
 
+/*
+ * Two types of OTP memory access modes
+ *   IWL_OTP_ACCESS_ABSOLUTE - absolute address mode,
+ * 			        based on physical memory addressing
+ *   IWL_OTP_ACCESS_RELATIVE - relative address mode,
+ * 			       based on logical memory addressing
+ */
+enum iwl_access_mode {
+	IWL_OTP_ACCESS_ABSOLUTE,
+	IWL_OTP_ACCESS_RELATIVE,
+};
 
 /**
  * enum iwl_pa_type - Power Amplifier type
diff --git a/drivers/net/wireless/iwlwifi/iwl-eeprom.c b/drivers/net/wireless/iwlwifi/iwl-eeprom.c
index ded63320a463..01b95e89009a 100644
--- a/drivers/net/wireless/iwlwifi/iwl-eeprom.c
+++ b/drivers/net/wireless/iwlwifi/iwl-eeprom.c
@@ -152,6 +152,19 @@ int iwlcore_eeprom_verify_signature(struct iwl_priv *priv)
 }
 EXPORT_SYMBOL(iwlcore_eeprom_verify_signature);
 
+static void iwl_set_otp_access(struct iwl_priv *priv, enum iwl_access_mode mode)
+{
+	u32 otpgp;
+
+	otpgp = iwl_read32(priv, CSR_OTP_GP_REG);
+	if (mode == IWL_OTP_ACCESS_ABSOLUTE)
+		iwl_clear_bit(priv, CSR_OTP_GP_REG,
+				CSR_OTP_GP_REG_OTP_ACCESS_MODE);
+	else
+		iwl_set_bit(priv, CSR_OTP_GP_REG,
+				CSR_OTP_GP_REG_OTP_ACCESS_MODE);
+}
+
 static int iwlcore_get_nvm_type(struct iwl_priv *priv)
 {
 	u32 otpgp;
@@ -252,6 +265,124 @@ static int iwl_init_otp_access(struct iwl_priv *priv)
 	return ret;
 }
 
+static int iwl_read_otp_word(struct iwl_priv *priv, u16 addr, u16 *eeprom_data)
+{
+	int ret = 0;
+	u32 r;
+	u32 otpgp;
+
+	_iwl_write32(priv, CSR_EEPROM_REG,
+		     CSR_EEPROM_REG_MSK_ADDR & (addr << 1));
+	ret = iwl_poll_direct_bit(priv, CSR_EEPROM_REG,
+				  CSR_EEPROM_REG_READ_VALID_MSK,
+				  IWL_EEPROM_ACCESS_TIMEOUT);
+	if (ret < 0) {
+		IWL_ERR(priv, "Time out reading OTP[%d]\n", addr);
+		return ret;
+	}
+	r = _iwl_read_direct32(priv, CSR_EEPROM_REG);
+	/* check for ECC errors: */
+	otpgp = iwl_read32(priv, CSR_OTP_GP_REG);
+	if (otpgp & CSR_OTP_GP_REG_ECC_UNCORR_STATUS_MSK) {
+		/* stop in this case */
+		/* set the uncorrectable OTP ECC bit for acknowledgement */
+		iwl_set_bit(priv, CSR_OTP_GP_REG,
+			CSR_OTP_GP_REG_ECC_UNCORR_STATUS_MSK);
+		IWL_ERR(priv, "Uncorrectable OTP ECC error, abort OTP read\n");
+		return -EINVAL;
+	}
+	if (otpgp & CSR_OTP_GP_REG_ECC_CORR_STATUS_MSK) {
+		/* continue in this case */
+		/* set the correctable OTP ECC bit for acknowledgement */
+		iwl_set_bit(priv, CSR_OTP_GP_REG,
+				CSR_OTP_GP_REG_ECC_CORR_STATUS_MSK);
+		IWL_ERR(priv, "Correctable OTP ECC error, continue read\n");
+	}
+	*eeprom_data = le16_to_cpu((__force __le16)(r >> 16));
+	return 0;
+}
+
+/*
+ * iwl_is_otp_empty: check for empty OTP
+ */
+static bool iwl_is_otp_empty(struct iwl_priv *priv)
+{
+	u16 next_link_addr = 0, link_value;
+	bool is_empty = false;
+
+	/* locate the beginning of OTP link list */
+	if (!iwl_read_otp_word(priv, next_link_addr, &link_value)) {
+		if (!link_value) {
+			IWL_ERR(priv, "OTP is empty\n");
+			is_empty = true;
+		}
+	} else {
+		IWL_ERR(priv, "Unable to read first block of OTP list.\n");
+		is_empty = true;
+	}
+
+	return is_empty;
+}
+
+
+/*
+ * iwl_find_otp_image: find EEPROM image in OTP
+ *   finding the OTP block that contains the EEPROM image.
+ *   the last valid block on the link list (the block _before_ the last block)
+ *   is the block we should read and used to configure the device.
+ *   If all the available OTP blocks are full, the last block will be the block
+ *   we should read and used to configure the device.
+ *   only perform this operation if shadow RAM is disabled
+ */
+static int iwl_find_otp_image(struct iwl_priv *priv,
+					u16 *validblockaddr)
+{
+	u16 next_link_addr = 0, link_value = 0, valid_addr;
+	int ret = 0;
+	int usedblocks = 0;
+
+	/* set addressing mode to absolute to traverse the link list */
+	iwl_set_otp_access(priv, IWL_OTP_ACCESS_ABSOLUTE);
+
+	/* checking for empty OTP or error */
+	if (iwl_is_otp_empty(priv))
+		return -EINVAL;
+
+	/*
+	 * start traverse link list
+	 * until reach the max number of OTP blocks
+	 * different devices have different number of OTP blocks
+	 */
+	do {
+		/* save current valid block address
+		 * check for more block on the link list
+		 */
+		valid_addr = next_link_addr;
+		next_link_addr = link_value;
+		IWL_DEBUG_INFO(priv, "OTP blocks %d addr 0x%x\n",
+			       usedblocks, next_link_addr);
+		if (iwl_read_otp_word(priv, next_link_addr, &link_value))
+			return -EINVAL;
+		if (!link_value) {
+			/*
+			 * reach the end of link list,
+			 * set address point to the starting address
+			 * of the image
+			 */
+			goto done;
+		}
+		/* more in the link list, continue */
+		usedblocks++;
+	} while (usedblocks < priv->cfg->max_ll_items);
+	/* OTP full, use last block */
+	IWL_DEBUG_INFO(priv, "OTP is full, use last block\n");
+done:
+	*validblockaddr = valid_addr;
+	/* skip first 2 bytes (link list pointer) */
+	*validblockaddr += 2;
+	return ret;
+}
+
 /**
  * iwl_eeprom_init - read EEPROM contents
  *
@@ -266,15 +397,14 @@ int iwl_eeprom_init(struct iwl_priv *priv)
 	int sz;
 	int ret;
 	u16 addr;
-	u32 otpgp;
+	u16 validblockaddr = 0;
+	u16 cache_addr = 0;
 
 	priv->nvm_device_type = iwlcore_get_nvm_type(priv);
 	if (priv->nvm_device_type == -ENOENT)
 		return -ENOENT;
 	/* allocate eeprom */
-	if (priv->nvm_device_type == NVM_DEVICE_TYPE_OTP)
-		priv->cfg->eeprom_size =
-			OTP_BLOCK_SIZE * OTP_LOWER_BLOCKS_TOTAL;
+	IWL_DEBUG_INFO(priv, "NVM size = %d\n", priv->cfg->eeprom_size);
 	sz = priv->cfg->eeprom_size;
 	priv->eeprom = kzalloc(sz, GFP_KERNEL);
 	if (!priv->eeprom) {
@@ -302,46 +432,31 @@ int iwl_eeprom_init(struct iwl_priv *priv)
 		if (ret) {
 			IWL_ERR(priv, "Failed to initialize OTP access.\n");
 			ret = -ENOENT;
-			goto err;
+			goto done;
 		}
 		_iwl_write32(priv, CSR_EEPROM_GP,
 			     iwl_read32(priv, CSR_EEPROM_GP) &
 			     ~CSR_EEPROM_GP_IF_OWNER_MSK);
-		/* clear */
-		_iwl_write32(priv, CSR_OTP_GP_REG,
-			     iwl_read32(priv, CSR_OTP_GP_REG) |
+
+		iwl_set_bit(priv, CSR_OTP_GP_REG,
 			     CSR_OTP_GP_REG_ECC_CORR_STATUS_MSK |
 			     CSR_OTP_GP_REG_ECC_UNCORR_STATUS_MSK);
-
-		for (addr = 0; addr < sz; addr += sizeof(u16)) {
-			u32 r;
-
-			_iwl_write32(priv, CSR_EEPROM_REG,
-				     CSR_EEPROM_REG_MSK_ADDR & (addr << 1));
-
-			ret = iwl_poll_direct_bit(priv, CSR_EEPROM_REG,
-						  CSR_EEPROM_REG_READ_VALID_MSK,
-						  IWL_EEPROM_ACCESS_TIMEOUT);
-			if (ret < 0) {
-				IWL_ERR(priv, "Time out reading OTP[%d]\n", addr);
+		/* traversing the linked list if no shadow ram supported */
+		if (!priv->cfg->shadow_ram_support) {
+			if (iwl_find_otp_image(priv, &validblockaddr)) {
+				ret = -ENOENT;
 				goto done;
 			}
-			r = _iwl_read_direct32(priv, CSR_EEPROM_REG);
-			/* check for ECC errors: */
-			otpgp = iwl_read32(priv, CSR_OTP_GP_REG);
-			if (otpgp & CSR_OTP_GP_REG_ECC_UNCORR_STATUS_MSK) {
-				/* stop in this case */
-				IWL_ERR(priv, "Uncorrectable OTP ECC error, Abort OTP read\n");
+		}
+		for (addr = validblockaddr; addr < validblockaddr + sz;
+		     addr += sizeof(u16)) {
+			u16 eeprom_data;
+
+			ret = iwl_read_otp_word(priv, addr, &eeprom_data);
+			if (ret)
 				goto done;
-			}
-			if (otpgp & CSR_OTP_GP_REG_ECC_CORR_STATUS_MSK) {
-				/* continue in this case */
-				_iwl_write32(priv, CSR_OTP_GP_REG,
-					     iwl_read32(priv, CSR_OTP_GP_REG) |
-					     CSR_OTP_GP_REG_ECC_CORR_STATUS_MSK);
-				IWL_ERR(priv, "Correctable OTP ECC error, continue read\n");
-			}
-			e[addr / 2] = le16_to_cpu((__force __le16)(r >> 16));
+			e[cache_addr / 2] = eeprom_data;
+			cache_addr += sizeof(u16);
 		}
 	} else {
 		/* eeprom is an array of 16bit values */
diff --git a/drivers/net/wireless/iwlwifi/iwl-eeprom.h b/drivers/net/wireless/iwlwifi/iwl-eeprom.h
index 05d4fc4451dc..ca7920a8f52f 100644
--- a/drivers/net/wireless/iwlwifi/iwl-eeprom.h
+++ b/drivers/net/wireless/iwlwifi/iwl-eeprom.h
@@ -180,8 +180,14 @@ struct iwl_eeprom_channel {
 #define EEPROM_5050_EEPROM_VERSION	(0x21E)
 
 /* OTP */
-#define OTP_LOWER_BLOCKS_TOTAL		(3)
-#define OTP_BLOCK_SIZE			(0x400)
+/* lower blocks contain EEPROM image and calibration data */
+#define OTP_LOW_IMAGE_SIZE		(2 * 512 * sizeof(u16)) /* 2 KB */
+/* high blocks contain PAPD data */
+#define OTP_HIGH_IMAGE_SIZE_6x00        (6 * 512 * sizeof(u16)) /* 6 KB */
+#define OTP_HIGH_IMAGE_SIZE_1000        (0x200 * sizeof(u16)) /* 1024 bytes */
+#define OTP_MAX_LL_ITEMS_1000		(3)	/* OTP blocks for 1000 */
+#define OTP_MAX_LL_ITEMS_6x00		(4)	/* OTP blocks for 6x00 */
+#define OTP_MAX_LL_ITEMS_6x50		(7)	/* OTP blocks for 6x50 */
 
 /* 2.4 GHz */
 extern const u8 iwl_eeprom_band_1[14];
-- 
cgit v1.2.3


From 367ca28da433ed9639468be851e1f33468e3485e Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Thu, 13 Aug 2009 13:30:55 -0700
Subject: iwlwifi: remove unused members of iwl_ht_info

Some members of iwl_ht_info are unused, and one of
them is write-only, so we can remove these three:
max_amsdu_size, ampdu_factor and mpdu_density.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Daniel C Halperin <daniel.c.halperin@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-core.c | 2 --
 drivers/net/wireless/iwlwifi/iwl-dev.h  | 3 ---
 2 files changed, 5 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 479b7e165b09..08345b97cb4c 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -2397,8 +2397,6 @@ static void iwl_ht_conf(struct iwl_priv *priv,
 		iwl_conf->sgf |= HT_SHORT_GI_40MHZ;
 
 	iwl_conf->is_green_field = !!(ht_conf->cap & IEEE80211_HT_CAP_GRN_FLD);
-	iwl_conf->max_amsdu_size =
-		!!(ht_conf->cap & IEEE80211_HT_CAP_MAX_AMSDU);
 
 	iwl_conf->supported_chan_width =
 		!!(ht_conf->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40);
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index 0b19a6f93c84..db745343d360 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -509,9 +509,6 @@ struct iwl_ht_info {
 	u8 sm_ps;
 	u8 is_green_field;
 	u8 sgf;			/* HT_SHORT_GI_* short guard interval */
-	u8 max_amsdu_size;
-	u8 ampdu_factor;
-	u8 mpdu_density;
 	struct ieee80211_mcs_info mcs;
 	/* BSS related data */
 	u8 extension_chan_offset;
-- 
cgit v1.2.3


From 9f30e04e041cf9943940f71fd76094dd5a237018 Mon Sep 17 00:00:00 2001
From: Daniel C Halperin <daniel.c.halperin@intel.com>
Date: Thu, 13 Aug 2009 13:30:56 -0700
Subject: iwlwifi: refactor packet reception code

This patch fixes a number of issues in iwl_rx_reply_rx and
iwl_pass_packet_to_mac80211.  These issues stem from the complexities of
managing two different types of packet commands for different hardware.

- Unify code handling rx_phy_res in SKB or cached to eliminate redundancy and
remove potential NULL pointer accesses
- Replace magic number with proper constant
- Optimize functions by moving early exit conditions before computation
- Comment code and improve some variable names
- Remove redundant computation in iwl_pass_packet_to_mac80211 by passing in the
correct, already-computed arguments.

Signed-off-by: Daniel C Halperin <daniel.c.halperin@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-commands.h |   1 +
 drivers/net/wireless/iwlwifi/iwl-rx.c       | 204 +++++++++++-----------------
 2 files changed, 78 insertions(+), 127 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-commands.h b/drivers/net/wireless/iwlwifi/iwl-commands.h
index 68d7719071f7..9398ad7e42b1 100644
--- a/drivers/net/wireless/iwlwifi/iwl-commands.h
+++ b/drivers/net/wireless/iwlwifi/iwl-commands.h
@@ -1156,6 +1156,7 @@ struct iwl_wep_cmd {
 #define RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK	cpu_to_le16(1 << 2)
 #define RX_RES_PHY_FLAGS_NARROW_BAND_MSK	cpu_to_le16(1 << 3)
 #define RX_RES_PHY_FLAGS_ANTENNA_MSK		cpu_to_le16(0xf0)
+#define RX_RES_PHY_FLAGS_ANTENNA_POS		4
 
 #define RX_RES_STATUS_SEC_TYPE_MSK	(0x7 << 8)
 #define RX_RES_STATUS_SEC_TYPE_NONE	(0x0 << 8)
diff --git a/drivers/net/wireless/iwlwifi/iwl-rx.c b/drivers/net/wireless/iwlwifi/iwl-rx.c
index 43b2fce4cbf0..092d3276175a 100644
--- a/drivers/net/wireless/iwlwifi/iwl-rx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-rx.c
@@ -853,61 +853,12 @@ static u32 iwl_translate_rx_status(struct iwl_priv *priv, u32 decrypt_in)
 }
 
 static void iwl_pass_packet_to_mac80211(struct iwl_priv *priv,
-				       int include_phy,
-				       struct iwl_rx_mem_buffer *rxb,
-				       struct ieee80211_rx_status *stats)
+					struct ieee80211_hdr *hdr,
+					u16 len,
+					u32 ampdu_status,
+					struct iwl_rx_mem_buffer *rxb,
+					struct ieee80211_rx_status *stats)
 {
-	struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
-	struct iwl_rx_phy_res *rx_start = (include_phy) ?
-	    (struct iwl_rx_phy_res *)&(pkt->u.raw[0]) : NULL;
-	struct ieee80211_hdr *hdr;
-	u16 len;
-	__le32 *rx_end;
-	unsigned int skblen;
-	u32 ampdu_status;
-	u32 ampdu_status_legacy;
-
-	if (!include_phy && priv->last_phy_res[0])
-		rx_start = (struct iwl_rx_phy_res *)&priv->last_phy_res[1];
-
-	if (!rx_start) {
-		IWL_ERR(priv, "MPDU frame without a PHY data\n");
-		return;
-	}
-	if (include_phy) {
-		hdr = (struct ieee80211_hdr *)((u8 *) &rx_start[1] +
-					       rx_start->cfg_phy_cnt);
-
-		len = le16_to_cpu(rx_start->byte_count);
-
-		rx_end = (__le32 *)((u8 *) &pkt->u.raw[0] +
-				  sizeof(struct iwl_rx_phy_res) +
-				  rx_start->cfg_phy_cnt + len);
-
-	} else {
-		struct iwl4965_rx_mpdu_res_start *amsdu =
-		    (struct iwl4965_rx_mpdu_res_start *)pkt->u.raw;
-
-		hdr = (struct ieee80211_hdr *)(pkt->u.raw +
-			       sizeof(struct iwl4965_rx_mpdu_res_start));
-		len =  le16_to_cpu(amsdu->byte_count);
-		rx_start->byte_count = amsdu->byte_count;
-		rx_end = (__le32 *) (((u8 *) hdr) + len);
-	}
-
-	ampdu_status = le32_to_cpu(*rx_end);
-	skblen = ((u8 *) rx_end - (u8 *) &pkt->u.raw[0]) + sizeof(u32);
-
-	if (!include_phy) {
-		/* New status scheme, need to translate */
-		ampdu_status_legacy = ampdu_status;
-		ampdu_status = iwl_translate_rx_status(priv, ampdu_status);
-	}
-
-	/* start from MAC */
-	skb_reserve(rxb->skb, (void *)hdr - (void *)pkt);
-	skb_put(rxb->skb, len);	/* end where data ends */
-
 	/* We only process data packets if the interface is open */
 	if (unlikely(!priv->is_open)) {
 		IWL_DEBUG_DROP_LIMIT(priv,
@@ -915,13 +866,15 @@ static void iwl_pass_packet_to_mac80211(struct iwl_priv *priv,
 		return;
 	}
 
-	hdr = (struct ieee80211_hdr *)rxb->skb->data;
-
-	/*  in case of HW accelerated crypto and bad decryption, drop */
+	/* In case of HW accelerated crypto and bad decryption, drop */
 	if (!priv->cfg->mod_params->sw_crypto &&
 	    iwl_set_decrypted_flag(priv, hdr, ampdu_status, stats))
 		return;
 
+	/* Resize SKB from mac header to end of packet */
+	skb_reserve(rxb->skb, (void *)hdr - (void *)rxb->skb->data);
+	skb_put(rxb->skb, len);
+
 	iwl_update_stats(priv, false, hdr->frame_control, len);
 	memcpy(IEEE80211_SKB_RXCB(rxb->skb), stats, sizeof(*stats));
 	ieee80211_rx_irqsafe(priv->hw, rxb->skb);
@@ -955,25 +908,66 @@ void iwl_rx_reply_rx(struct iwl_priv *priv,
 	struct ieee80211_hdr *header;
 	struct ieee80211_rx_status rx_status;
 	struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
-	/* Use phy data (Rx signal strength, etc.) contained within
-	 *   this rx packet for legacy frames,
-	 *   or phy data cached from REPLY_RX_PHY_CMD for HT frames. */
-	int include_phy = (pkt->hdr.cmd == REPLY_RX);
-	struct iwl_rx_phy_res *rx_start = (include_phy) ?
-		(struct iwl_rx_phy_res *)&(pkt->u.raw[0]) :
-		(struct iwl_rx_phy_res *)&priv->last_phy_res[1];
-	__le32 *rx_end;
-	unsigned int len = 0;
+	struct iwl_rx_phy_res *phy_res;
+	__le32 rx_pkt_status;
+	struct iwl4965_rx_mpdu_res_start *amsdu;
+	u32 len;
+	u32 ampdu_status;
 	u16 fc;
-	u8 network_packet;
 
-	rx_status.mactime = le64_to_cpu(rx_start->timestamp);
+	/**
+	 * REPLY_RX and REPLY_RX_MPDU_CMD are handled differently.
+	 *	REPLY_RX: physical layer info is in this buffer
+	 *	REPLY_RX_MPDU_CMD: physical layer info was sent in separate
+	 *		command and cached in priv->last_phy_res
+	 *
+	 * Here we set up local variables depending on which command is
+	 * received.
+	 */
+	if (pkt->hdr.cmd == REPLY_RX) {
+		phy_res = (struct iwl_rx_phy_res *)pkt->u.raw;
+		header = (struct ieee80211_hdr *)(pkt->u.raw + sizeof(*phy_res)
+				+ phy_res->cfg_phy_cnt);
+
+		len = le16_to_cpu(phy_res->byte_count);
+		rx_pkt_status = *(__le32 *)(pkt->u.raw + sizeof(*phy_res) +
+				phy_res->cfg_phy_cnt + len);
+		ampdu_status = le32_to_cpu(rx_pkt_status);
+	} else {
+		if (!priv->last_phy_res[0]) {
+			IWL_ERR(priv, "MPDU frame without cached PHY data\n");
+			return;
+		}
+		phy_res = (struct iwl_rx_phy_res *)&priv->last_phy_res[1];
+		amsdu = (struct iwl4965_rx_mpdu_res_start *)pkt->u.raw;
+		header = (struct ieee80211_hdr *)(pkt->u.raw + sizeof(*amsdu));
+		len = le16_to_cpu(amsdu->byte_count);
+		rx_pkt_status = *(__le32 *)(pkt->u.raw + sizeof(*amsdu) + len);
+		ampdu_status = iwl_translate_rx_status(priv,
+				le32_to_cpu(rx_pkt_status));
+	}
+
+	if ((unlikely(phy_res->cfg_phy_cnt > 20))) {
+		IWL_DEBUG_DROP(priv, "dsp size out of range [0,20]: %d/n",
+				phy_res->cfg_phy_cnt);
+		return;
+	}
+
+	if (!(rx_pkt_status & RX_RES_STATUS_NO_CRC32_ERROR) ||
+	    !(rx_pkt_status & RX_RES_STATUS_NO_RXE_OVERFLOW)) {
+		IWL_DEBUG_RX(priv, "Bad CRC or FIFO: 0x%08X.\n",
+				le32_to_cpu(rx_pkt_status));
+		return;
+	}
+
+	/* rx_status carries information about the packet to mac80211 */
+	rx_status.mactime = le64_to_cpu(phy_res->timestamp);
 	rx_status.freq =
-		ieee80211_channel_to_frequency(le16_to_cpu(rx_start->channel));
-	rx_status.band = (rx_start->phy_flags & RX_RES_PHY_FLAGS_BAND_24_MSK) ?
+		ieee80211_channel_to_frequency(le16_to_cpu(phy_res->channel));
+	rx_status.band = (phy_res->phy_flags & RX_RES_PHY_FLAGS_BAND_24_MSK) ?
 				IEEE80211_BAND_2GHZ : IEEE80211_BAND_5GHZ;
 	rx_status.rate_idx =
-		iwl_hwrate_to_plcp_idx(le32_to_cpu(rx_start->rate_n_flags));
+		iwl_hwrate_to_plcp_idx(le32_to_cpu(phy_res->rate_n_flags));
 	if (rx_status.band == IEEE80211_BAND_5GHZ)
 		rx_status.rate_idx -= IWL_FIRST_OFDM_RATE;
 
@@ -983,54 +977,10 @@ void iwl_rx_reply_rx(struct iwl_priv *priv,
 	 * this W/A doesn't propagate it to the mac80211 */
 	/*rx_status.flag |= RX_FLAG_TSFT;*/
 
-	if ((unlikely(rx_start->cfg_phy_cnt > 20))) {
-		IWL_DEBUG_DROP(priv, "dsp size out of range [0,20]: %d/n",
-				rx_start->cfg_phy_cnt);
-		return;
-	}
-
-	if (!include_phy) {
-		if (priv->last_phy_res[0])
-			rx_start = (struct iwl_rx_phy_res *)
-				&priv->last_phy_res[1];
-		else
-			rx_start = NULL;
-	}
-
-	if (!rx_start) {
-		IWL_ERR(priv, "MPDU frame without a PHY data\n");
-		return;
-	}
-
-	if (include_phy) {
-		header = (struct ieee80211_hdr *)((u8 *) &rx_start[1]
-						  + rx_start->cfg_phy_cnt);
-
-		len = le16_to_cpu(rx_start->byte_count);
-		rx_end = (__le32 *)(pkt->u.raw + rx_start->cfg_phy_cnt +
-				  sizeof(struct iwl_rx_phy_res) + len);
-	} else {
-		struct iwl4965_rx_mpdu_res_start *amsdu =
-			(struct iwl4965_rx_mpdu_res_start *)pkt->u.raw;
-
-		header = (void *)(pkt->u.raw +
-			sizeof(struct iwl4965_rx_mpdu_res_start));
-		len = le16_to_cpu(amsdu->byte_count);
-		rx_end = (__le32 *) (pkt->u.raw +
-			sizeof(struct iwl4965_rx_mpdu_res_start) + len);
-	}
-
-	if (!(*rx_end & RX_RES_STATUS_NO_CRC32_ERROR) ||
-	    !(*rx_end & RX_RES_STATUS_NO_RXE_OVERFLOW)) {
-		IWL_DEBUG_RX(priv, "Bad CRC or FIFO: 0x%08X.\n",
-				le32_to_cpu(*rx_end));
-		return;
-	}
-
-	priv->ucode_beacon_time = le32_to_cpu(rx_start->beacon_time_stamp);
+	priv->ucode_beacon_time = le32_to_cpu(phy_res->beacon_time_stamp);
 
 	/* Find max signal strength (dBm) among 3 antenna/receiver chains */
-	rx_status.signal = iwl_calc_rssi(priv, rx_start);
+	rx_status.signal = iwl_calc_rssi(priv, phy_res);
 
 	/* Meaningful noise values are available only from beacon statistics,
 	 *   which are gathered only when associated, and indicate noise
@@ -1050,10 +1000,10 @@ void iwl_rx_reply_rx(struct iwl_priv *priv,
 	if (!iwl_is_associated(priv))
 		priv->last_rx_noise = IWL_NOISE_MEAS_NOT_AVAILABLE;
 
-	/* Set "1" to report good data frames in groups of 100 */
 #ifdef CONFIG_IWLWIFI_DEBUG
+	/* Set "1" to report good data frames in groups of 100 */
 	if (unlikely(iwl_get_debug_level(priv) & IWL_DL_RX))
-		iwl_dbg_report_frame(priv, rx_start, len, header, 1);
+		iwl_dbg_report_frame(priv, phy_res, len, header, 1);
 #endif
 	iwl_dbg_log_rx_data_frame(priv, len, header);
 	IWL_DEBUG_STATS_LIMIT(priv, "Rssi %d, noise %d, qual %d, TSF %llu\n",
@@ -1073,18 +1023,18 @@ void iwl_rx_reply_rx(struct iwl_priv *priv,
 	 * new 802.11n radiotap field "RX chains" that is defined
 	 * as a bitmask.
 	 */
-	rx_status.antenna = le16_to_cpu(rx_start->phy_flags &
-					RX_RES_PHY_FLAGS_ANTENNA_MSK) >> 4;
+	rx_status.antenna =
+		le16_to_cpu(phy_res->phy_flags & RX_RES_PHY_FLAGS_ANTENNA_MSK)
+		>> RX_RES_PHY_FLAGS_ANTENNA_POS;
 
 	/* set the preamble flag if appropriate */
-	if (rx_start->phy_flags & RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK)
+	if (phy_res->phy_flags & RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK)
 		rx_status.flag |= RX_FLAG_SHORTPRE;
 
-	network_packet = iwl_is_network_packet(priv, header);
-	if (network_packet) {
+	if (iwl_is_network_packet(priv, header)) {
 		priv->last_rx_rssi = rx_status.signal;
 		priv->last_beacon_time =  priv->ucode_beacon_time;
-		priv->last_tsf = le64_to_cpu(rx_start->timestamp);
+		priv->last_tsf = le64_to_cpu(phy_res->timestamp);
 	}
 
 	fc = le16_to_cpu(header->frame_control);
@@ -1096,8 +1046,8 @@ void iwl_rx_reply_rx(struct iwl_priv *priv,
 						header->addr2);
 		/* fall through */
 	default:
-			iwl_pass_packet_to_mac80211(priv, include_phy, rxb,
-				   &rx_status);
+		iwl_pass_packet_to_mac80211(priv, header, len, ampdu_status,
+				rxb, &rx_status);
 		break;
 
 	}
-- 
cgit v1.2.3


From 28bd723bbaddba4e145d25117649bb6da5fafad7 Mon Sep 17 00:00:00 2001
From: Daniel C Halperin <daniel.c.halperin@intel.com>
Date: Thu, 13 Aug 2009 13:30:57 -0700
Subject: iwlwifi: configure HT40 channels in iwl_mac_config

As indicated by note in iwl_ht_conf, some HT parameters are set on association
(e.g., channel width) and some vary over time (HT protection mode) and per
station (e.g., short GI support).  The global parameters should be set in
iwl_mac_config and the local/varying parameters in iwl_ht_conf.

This patch moves the channel width configuration from iwl_ht_conf to
iwl_mac_config, and defers further cleanup of the local/global conflation for a
later patch.

This fixes a bug in using HT40 channels in some modes.

Signed-off-by: Daniel C Halperin <daniel.c.halperin@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-core.c | 46 ++++++++++++++++++---------------
 1 file changed, 25 insertions(+), 21 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 08345b97cb4c..104fd95dfad6 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -2398,25 +2398,6 @@ static void iwl_ht_conf(struct iwl_priv *priv,
 
 	iwl_conf->is_green_field = !!(ht_conf->cap & IEEE80211_HT_CAP_GRN_FLD);
 
-	iwl_conf->supported_chan_width =
-		!!(ht_conf->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40);
-
-	/*
-	 * XXX: The HT configuration needs to be moved into iwl_mac_config()
-	 *	to be done there correctly.
-	 */
-
-	iwl_conf->extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_NONE;
-	if (conf_is_ht40_minus(&priv->hw->conf))
-		iwl_conf->extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_BELOW;
-	else if (conf_is_ht40_plus(&priv->hw->conf))
-		iwl_conf->extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
-
-	/* If no above or below channel supplied disable HT40 channel */
-	if (iwl_conf->extension_chan_offset != IEEE80211_HT_PARAM_CHA_SEC_ABOVE &&
-	    iwl_conf->extension_chan_offset != IEEE80211_HT_PARAM_CHA_SEC_BELOW)
-		iwl_conf->supported_chan_width = 0;
-
 	iwl_conf->sm_ps = (u8)((ht_conf->cap & IEEE80211_HT_CAP_SM_PS) >> 2);
 
 	memcpy(&iwl_conf->mcs, &ht_conf->mcs, 16);
@@ -2733,6 +2714,7 @@ int iwl_mac_config(struct ieee80211_hw *hw, u32 changed)
 	struct iwl_priv *priv = hw->priv;
 	const struct iwl_channel_info *ch_info;
 	struct ieee80211_conf *conf = &hw->conf;
+	struct iwl_ht_info *ht_conf = &priv->current_ht_config;
 	unsigned long flags = 0;
 	int ret = 0;
 	u16 ch;
@@ -2774,10 +2756,32 @@ int iwl_mac_config(struct ieee80211_hw *hw, u32 changed)
 			goto set_ch_out;
 		}
 
-		priv->current_ht_config.is_ht = conf_is_ht(conf);
-
 		spin_lock_irqsave(&priv->lock, flags);
 
+		/* Configure HT40 channels */
+		ht_conf->is_ht = conf_is_ht(conf);
+		if (ht_conf->is_ht) {
+			if (conf_is_ht40_minus(conf)) {
+				ht_conf->extension_chan_offset =
+					IEEE80211_HT_PARAM_CHA_SEC_BELOW;
+				ht_conf->supported_chan_width =
+					IWL_CHANNEL_WIDTH_40MHZ;
+			} else if (conf_is_ht40_plus(conf)) {
+				ht_conf->extension_chan_offset =
+					IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
+				ht_conf->supported_chan_width =
+					IWL_CHANNEL_WIDTH_40MHZ;
+			} else {
+				ht_conf->extension_chan_offset =
+					IEEE80211_HT_PARAM_CHA_SEC_NONE;
+				ht_conf->supported_chan_width =
+					IWL_CHANNEL_WIDTH_20MHZ;
+			}
+		} else
+			ht_conf->supported_chan_width = IWL_CHANNEL_WIDTH_20MHZ;
+		/* Default to no protection. Protection mode will later be set
+		 * from BSS config in iwl_ht_conf */
+		ht_conf->ht_protection = IEEE80211_HT_OP_MODE_PROTECTION_NONE;
 
 		/* if we are switching from ht to 2.4 clear flags
 		 * from any ht related info since 2.4 does not
-- 
cgit v1.2.3


From 28e6f48953f44f7eb615383efe6e7f17624a11bb Mon Sep 17 00:00:00 2001
From: Daniel C Halperin <daniel.c.halperin@intel.com>
Date: Thu, 13 Aug 2009 13:30:58 -0700
Subject: iwlwifi: check short GI support per-station rather than globally

Short guard interval support is a local per-station parameter not a global
per-NIC parameter.  (mac80211 will correctly remove SGI support from station
capabilities if the BSS does not permit it).  This patch removes the short GI
support bitfield from the global iwl_ht_info struct and properly uses
per-station HT capabilities during rate selection.

Signed-off-by: Daniel C Halperin <daniel.c.halperin@intel.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-agn-rs.c | 69 +++++++------------------------
 drivers/net/wireless/iwlwifi/iwl-core.c   |  5 ---
 drivers/net/wireless/iwlwifi/iwl-dev.h    |  4 --
 3 files changed, 15 insertions(+), 63 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
index 551c4ba3f178..3b1bbc394a49 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
@@ -1225,18 +1225,6 @@ static int rs_switch_to_mimo2(struct iwl_priv *priv,
 	else
 		tbl->is_ht40 = 0;
 
-	/* FIXME: - don't toggle SGI here
-	if (tbl->is_ht40) {
-		if (priv->current_ht_config.sgf & HT_SHORT_GI_40MHZ_ONLY)
-			tbl->is_SGI = 1;
-		else
-			tbl->is_SGI = 0;
-	} else if (priv->current_ht_config.sgf & HT_SHORT_GI_20MHZ_ONLY)
-		tbl->is_SGI = 1;
-	else
-		tbl->is_SGI = 0;
-	*/
-
 	rs_set_expected_tpt_table(lq_sta, tbl);
 
 	rate = rs_get_best_rate(priv, lq_sta, tbl, rate_mask, index);
@@ -1291,18 +1279,6 @@ static int rs_switch_to_mimo3(struct iwl_priv *priv,
 	else
 		tbl->is_ht40 = 0;
 
-	/* FIXME: - don't toggle SGI here
-	if (tbl->is_ht40) {
-		if (priv->current_ht_config.sgf & HT_SHORT_GI_40MHZ_ONLY)
-			tbl->is_SGI = 1;
-		else
-			tbl->is_SGI = 0;
-	} else if (priv->current_ht_config.sgf & HT_SHORT_GI_20MHZ_ONLY)
-		tbl->is_SGI = 1;
-	else
-		tbl->is_SGI = 0;
-	*/
-
 	rs_set_expected_tpt_table(lq_sta, tbl);
 
 	rate = rs_get_best_rate(priv, lq_sta, tbl, rate_mask, index);
@@ -1350,18 +1326,6 @@ static int rs_switch_to_siso(struct iwl_priv *priv,
 	else
 		tbl->is_ht40 = 0;
 
-	/* FIXME: - don't toggle SGI here
-	if (tbl->is_ht40) {
-		if (priv->current_ht_config.sgf & HT_SHORT_GI_40MHZ_ONLY)
-			tbl->is_SGI = 1;
-		else
-			tbl->is_SGI = 0;
-	} else if (priv->current_ht_config.sgf & HT_SHORT_GI_20MHZ_ONLY)
-		tbl->is_SGI = 1;
-	else
-		tbl->is_SGI = 0;
-	*/
-
 	if (is_green)
 		tbl->is_SGI = 0; /*11n spec: no SGI in SISO+Greenfield*/
 
@@ -1530,6 +1494,7 @@ static int rs_move_siso_to_other(struct iwl_priv *priv,
 	struct iwl_scale_tbl_info *search_tbl =
 				&(lq_sta->lq_info[(1 - lq_sta->active_tbl)]);
 	struct iwl_rate_scale_data *window = &(tbl->win[index]);
+	struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap;
 	u32 sz = (sizeof(struct iwl_scale_tbl_info) -
 		  (sizeof(struct iwl_rate_scale_data) * IWL_RATE_COUNT));
 	u8 start_action = tbl->action;
@@ -1589,13 +1554,11 @@ static int rs_move_siso_to_other(struct iwl_priv *priv,
 				goto out;
 			break;
 		case IWL_SISO_SWITCH_GI:
-			if (!tbl->is_ht40 &&
-				!(priv->current_ht_config.sgf &
-						HT_SHORT_GI_20MHZ))
+			if (!tbl->is_ht40 && !(ht_cap->cap &
+						IEEE80211_HT_CAP_SGI_20))
 				break;
-			if (tbl->is_ht40 &&
-				!(priv->current_ht_config.sgf &
-						HT_SHORT_GI_40MHZ))
+			if (tbl->is_ht40 && !(ht_cap->cap &
+						IEEE80211_HT_CAP_SGI_40))
 				break;
 
 			IWL_DEBUG_RATE(priv, "LQ: SISO toggle SGI/NGI\n");
@@ -1669,6 +1632,7 @@ static int rs_move_mimo2_to_other(struct iwl_priv *priv,
 	struct iwl_scale_tbl_info *search_tbl =
 				&(lq_sta->lq_info[(1 - lq_sta->active_tbl)]);
 	struct iwl_rate_scale_data *window = &(tbl->win[index]);
+	struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap;
 	u32 sz = (sizeof(struct iwl_scale_tbl_info) -
 		  (sizeof(struct iwl_rate_scale_data) * IWL_RATE_COUNT));
 	u8 start_action = tbl->action;
@@ -1729,13 +1693,11 @@ static int rs_move_mimo2_to_other(struct iwl_priv *priv,
 			break;
 
 		case IWL_MIMO2_SWITCH_GI:
-			if (!tbl->is_ht40 &&
-				!(priv->current_ht_config.sgf &
-						HT_SHORT_GI_20MHZ))
+			if (!tbl->is_ht40 && !(ht_cap->cap &
+						IEEE80211_HT_CAP_SGI_20))
 				break;
-			if (tbl->is_ht40 &&
-				!(priv->current_ht_config.sgf &
-						HT_SHORT_GI_40MHZ))
+			if (tbl->is_ht40 && !(ht_cap->cap &
+						IEEE80211_HT_CAP_SGI_40))
 				break;
 
 			IWL_DEBUG_RATE(priv, "LQ: MIMO2 toggle SGI/NGI\n");
@@ -1811,6 +1773,7 @@ static int rs_move_mimo3_to_other(struct iwl_priv *priv,
 	struct iwl_scale_tbl_info *search_tbl =
 				&(lq_sta->lq_info[(1 - lq_sta->active_tbl)]);
 	struct iwl_rate_scale_data *window = &(tbl->win[index]);
+	struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap;
 	u32 sz = (sizeof(struct iwl_scale_tbl_info) -
 		  (sizeof(struct iwl_rate_scale_data) * IWL_RATE_COUNT));
 	u8 start_action = tbl->action;
@@ -1893,13 +1856,11 @@ static int rs_move_mimo3_to_other(struct iwl_priv *priv,
 			break;
 
 		case IWL_MIMO3_SWITCH_GI:
-			if (!tbl->is_ht40 &&
-				!(priv->current_ht_config.sgf &
-						HT_SHORT_GI_20MHZ))
+			if (!tbl->is_ht40 && !(ht_cap->cap &
+						IEEE80211_HT_CAP_SGI_20))
 				break;
-			if (tbl->is_ht40 &&
-				!(priv->current_ht_config.sgf &
-						HT_SHORT_GI_40MHZ))
+			if (tbl->is_ht40 && !(ht_cap->cap &
+						IEEE80211_HT_CAP_SGI_40))
 				break;
 
 			IWL_DEBUG_RATE(priv, "LQ: MIMO3 toggle SGI/NGI\n");
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 104fd95dfad6..b845cf30e1bc 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -2391,11 +2391,6 @@ static void iwl_ht_conf(struct iwl_priv *priv,
 	}
 	ht_conf = &sta->ht_cap;
 
-	if (ht_conf->cap & IEEE80211_HT_CAP_SGI_20)
-		iwl_conf->sgf |= HT_SHORT_GI_20MHZ;
-	if (ht_conf->cap & IEEE80211_HT_CAP_SGI_40)
-		iwl_conf->sgf |= HT_SHORT_GI_40MHZ;
-
 	iwl_conf->is_green_field = !!(ht_conf->cap & IEEE80211_HT_CAP_GRN_FLD);
 
 	iwl_conf->sm_ps = (u8)((ht_conf->cap & IEEE80211_HT_CAP_SM_PS) >> 2);
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index db745343d360..e6a1c6ff44de 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -508,7 +508,6 @@ struct iwl_ht_info {
 	u8 supported_chan_width;
 	u8 sm_ps;
 	u8 is_green_field;
-	u8 sgf;			/* HT_SHORT_GI_* short guard interval */
 	struct ieee80211_mcs_info mcs;
 	/* BSS related data */
 	u8 extension_chan_offset;
@@ -728,9 +727,6 @@ struct iwl_dma_ptr {
 	size_t size;
 };
 
-#define HT_SHORT_GI_20MHZ	(1 << 0)
-#define HT_SHORT_GI_40MHZ	(1 << 1)
-
 #define IWL_CHANNEL_WIDTH_20MHZ   0
 #define IWL_CHANNEL_WIDTH_40MHZ   1
 
-- 
cgit v1.2.3


From b261793da587160d12ce6d63db60493342ddce20 Mon Sep 17 00:00:00 2001
From: Daniel C Halperin <daniel.c.halperin@intel.com>
Date: Thu, 13 Aug 2009 13:30:59 -0700
Subject: iwlwifi: use station HT capabilities and BSS operating mode for
 Green-field

Green-field mode should be configured in the HT station table.  This patch uses
both the per-station GF support flag as well as the current BSS HT operation
mode (non-GF stations present flag).

Added the "ht_greenfield_support" field to struct iwl_cfg to replace the
device-specific check in rs_use_green().  That check has been moved to
iwlcore_init_ht_hw_capab().

Signed-off-by: Daniel C Halperin <daniel.c.halperin@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-1000.c   |  1 +
 drivers/net/wireless/iwlwifi/iwl-3945.c   |  6 ++++--
 drivers/net/wireless/iwlwifi/iwl-4965.c   |  3 ++-
 drivers/net/wireless/iwlwifi/iwl-5000.c   |  6 ++++++
 drivers/net/wireless/iwlwifi/iwl-6000.c   |  5 +++++
 drivers/net/wireless/iwlwifi/iwl-agn-rs.c | 26 +++++++++++---------------
 drivers/net/wireless/iwlwifi/iwl-core.c   |  5 ++---
 drivers/net/wireless/iwlwifi/iwl-core.h   |  1 +
 drivers/net/wireless/iwlwifi/iwl-dev.h    |  1 -
 9 files changed, 32 insertions(+), 22 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-1000.c b/drivers/net/wireless/iwlwifi/iwl-1000.c
index 9bb6a287eaee..a95caa014143 100644
--- a/drivers/net/wireless/iwlwifi/iwl-1000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-1000.c
@@ -158,5 +158,6 @@ struct iwl_cfg iwl1000_bgn_cfg = {
 	.need_pll_cfg = true,
 	.max_ll_items = OTP_MAX_LL_ITEMS_1000,
 	.shadow_ram_support = false,
+	.ht_greenfield_support = true,
 };
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c
index ba5ef832d770..b5a4d2ecdd2d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945.c
@@ -2889,7 +2889,8 @@ static struct iwl_cfg iwl3945_bg_cfg = {
 	.eeprom_ver = EEPROM_3945_EEPROM_VERSION,
 	.ops = &iwl3945_ops,
 	.mod_params = &iwl3945_mod_params,
-	.use_isr_legacy = true
+	.use_isr_legacy = true,
+	.ht_greenfield_support = false,
 };
 
 static struct iwl_cfg iwl3945_abg_cfg = {
@@ -2902,7 +2903,8 @@ static struct iwl_cfg iwl3945_abg_cfg = {
 	.eeprom_ver = EEPROM_3945_EEPROM_VERSION,
 	.ops = &iwl3945_ops,
 	.mod_params = &iwl3945_mod_params,
-	.use_isr_legacy = true
+	.use_isr_legacy = true,
+	.ht_greenfield_support = false,
 };
 
 struct pci_device_id iwl3945_hw_card_ids[] = {
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c
index e427a8937ed8..6a13bfbc9d98 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965.c
+++ b/drivers/net/wireless/iwlwifi/iwl-4965.c
@@ -2344,7 +2344,8 @@ struct iwl_cfg iwl4965_agn_cfg = {
 	.eeprom_calib_ver = EEPROM_4965_TX_POWER_VERSION,
 	.ops = &iwl4965_ops,
 	.mod_params = &iwl4965_mod_params,
-	.use_isr_legacy = true
+	.use_isr_legacy = true,
+	.ht_greenfield_support = false,
 };
 
 /* Module firmware */
diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c
index 755c184b3ecb..e1e862eb5aca 100644
--- a/drivers/net/wireless/iwlwifi/iwl-5000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-5000.c
@@ -1652,6 +1652,7 @@ struct iwl_cfg iwl5300_agn_cfg = {
 	.valid_tx_ant = ANT_ABC,
 	.valid_rx_ant = ANT_ABC,
 	.need_pll_cfg = true,
+	.ht_greenfield_support = true,
 };
 
 struct iwl_cfg iwl5100_bg_cfg = {
@@ -1668,6 +1669,7 @@ struct iwl_cfg iwl5100_bg_cfg = {
 	.valid_tx_ant = ANT_B,
 	.valid_rx_ant = ANT_AB,
 	.need_pll_cfg = true,
+	.ht_greenfield_support = true,
 };
 
 struct iwl_cfg iwl5100_abg_cfg = {
@@ -1684,6 +1686,7 @@ struct iwl_cfg iwl5100_abg_cfg = {
 	.valid_tx_ant = ANT_B,
 	.valid_rx_ant = ANT_AB,
 	.need_pll_cfg = true,
+	.ht_greenfield_support = true,
 };
 
 struct iwl_cfg iwl5100_agn_cfg = {
@@ -1700,6 +1703,7 @@ struct iwl_cfg iwl5100_agn_cfg = {
 	.valid_tx_ant = ANT_B,
 	.valid_rx_ant = ANT_AB,
 	.need_pll_cfg = true,
+	.ht_greenfield_support = true,
 };
 
 struct iwl_cfg iwl5350_agn_cfg = {
@@ -1716,6 +1720,7 @@ struct iwl_cfg iwl5350_agn_cfg = {
 	.valid_tx_ant = ANT_ABC,
 	.valid_rx_ant = ANT_ABC,
 	.need_pll_cfg = true,
+	.ht_greenfield_support = true,
 };
 
 struct iwl_cfg iwl5150_agn_cfg = {
@@ -1732,6 +1737,7 @@ struct iwl_cfg iwl5150_agn_cfg = {
 	.valid_tx_ant = ANT_A,
 	.valid_rx_ant = ANT_AB,
 	.need_pll_cfg = true,
+	.ht_greenfield_support = true,
 };
 
 MODULE_FIRMWARE(IWL5000_MODULE_FIRMWARE(IWL5000_UCODE_API_MAX));
diff --git a/drivers/net/wireless/iwlwifi/iwl-6000.c b/drivers/net/wireless/iwlwifi/iwl-6000.c
index 0b731fd5ad1c..383177db7de7 100644
--- a/drivers/net/wireless/iwlwifi/iwl-6000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-6000.c
@@ -171,6 +171,7 @@ struct iwl_cfg iwl6000h_2agn_cfg = {
 	.pa_type = IWL_PA_HYBRID,
 	.max_ll_items = OTP_MAX_LL_ITEMS_6x00,
 	.shadow_ram_support = true,
+	.ht_greenfield_support = true,
 };
 
 /*
@@ -193,6 +194,7 @@ struct iwl_cfg iwl6000i_2agn_cfg = {
 	.pa_type = IWL_PA_INTERNAL,
 	.max_ll_items = OTP_MAX_LL_ITEMS_6x00,
 	.shadow_ram_support = true,
+	.ht_greenfield_support = true,
 };
 
 struct iwl_cfg iwl6050_2agn_cfg = {
@@ -212,6 +214,7 @@ struct iwl_cfg iwl6050_2agn_cfg = {
 	.pa_type = IWL_PA_SYSTEM,
 	.max_ll_items = OTP_MAX_LL_ITEMS_6x00,
 	.shadow_ram_support = true,
+	.ht_greenfield_support = true,
 };
 
 struct iwl_cfg iwl6000_3agn_cfg = {
@@ -231,6 +234,7 @@ struct iwl_cfg iwl6000_3agn_cfg = {
 	.pa_type = IWL_PA_SYSTEM,
 	.max_ll_items = OTP_MAX_LL_ITEMS_6x00,
 	.shadow_ram_support = true,
+	.ht_greenfield_support = true,
 };
 
 struct iwl_cfg iwl6050_3agn_cfg = {
@@ -250,6 +254,7 @@ struct iwl_cfg iwl6050_3agn_cfg = {
 	.pa_type = IWL_PA_SYSTEM,
 	.max_ll_items = OTP_MAX_LL_ITEMS_6x00,
 	.shadow_ram_support = true,
+	.ht_greenfield_support = true,
 };
 
 MODULE_FIRMWARE(IWL6000_MODULE_FIRMWARE(IWL6000_UCODE_API_MAX));
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
index 3b1bbc394a49..fee110de5c6a 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
@@ -657,19 +657,15 @@ static int rs_toggle_antenna(u32 valid_ant, u32 *rate_n_flags,
 	return 1;
 }
 
-/* in 4965 we don't use greenfield at all */
-static inline u8 rs_use_green(struct iwl_priv *priv,
-			      struct ieee80211_conf *conf)
+/**
+ * Green-field mode is valid if the station supports it and
+ * there are no non-GF stations present in the BSS.
+ */
+static inline u8 rs_use_green(struct ieee80211_sta *sta,
+			      struct iwl_ht_info *ht_conf)
 {
-	u8 is_green;
-
-	if ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_4965)
-		is_green = 0;
-	else
-		is_green = (conf_is_ht(conf) &&
-			   priv->current_ht_config.is_green_field &&
-			   !priv->current_ht_config.non_GF_STA_present);
-	return is_green;
+	return (sta->ht_cap.cap & IEEE80211_HT_CAP_GRN_FLD) &&
+		!(ht_conf->non_GF_STA_present);
 }
 
 /**
@@ -2072,7 +2068,7 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
 	if (is_legacy(tbl->lq_type))
 		lq_sta->is_green = 0;
 	else
-		lq_sta->is_green = rs_use_green(priv, conf);
+		lq_sta->is_green = rs_use_green(sta, &priv->current_ht_config);
 	is_green = lq_sta->is_green;
 
 	/* current tx rate */
@@ -2430,7 +2426,7 @@ static void rs_initialize_lq(struct iwl_priv *priv,
 	int rate_idx;
 	int i;
 	u32 rate;
-	u8 use_green = rs_use_green(priv, conf);
+	u8 use_green = rs_use_green(sta, &priv->current_ht_config);
 	u8 active_tbl = 0;
 	u8 valid_tx_ant;
 
@@ -2627,7 +2623,7 @@ static void rs_rate_init(void *priv_r, struct ieee80211_supported_band *sband,
 	lq_sta->is_dup = 0;
 	lq_sta->max_rate_idx = -1;
 	lq_sta->missed_rate_counter = IWL_MISSED_RATE_MAX;
-	lq_sta->is_green = rs_use_green(priv, conf);
+	lq_sta->is_green = rs_use_green(sta, &priv->current_ht_config);
 	lq_sta->active_legacy_rate = priv->active_rate & ~(0x1000);
 	lq_sta->active_rate_basic = priv->active_rate_basic;
 	lq_sta->band = priv->band;
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index b845cf30e1bc..62aa87b4358a 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -394,7 +394,8 @@ static void iwlcore_init_ht_hw_capab(const struct iwl_priv *priv,
 
 	ht_info->ht_supported = true;
 
-	ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
+	if (priv->cfg->ht_greenfield_support)
+		ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
 	ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
 	ht_info->cap |= (IEEE80211_HT_CAP_SM_PS &
 			     (WLAN_HT_CAP_SM_PS_DISABLED << 2));
@@ -2391,8 +2392,6 @@ static void iwl_ht_conf(struct iwl_priv *priv,
 	}
 	ht_conf = &sta->ht_cap;
 
-	iwl_conf->is_green_field = !!(ht_conf->cap & IEEE80211_HT_CAP_GRN_FLD);
-
 	iwl_conf->sm_ps = (u8)((ht_conf->cap & IEEE80211_HT_CAP_SM_PS) >> 2);
 
 	memcpy(&iwl_conf->mcs, &ht_conf->mcs, 16);
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h
index 509683487e0e..4ca025a34daf 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.h
+++ b/drivers/net/wireless/iwlwifi/iwl-core.h
@@ -251,6 +251,7 @@ struct iwl_cfg {
 	enum iwl_pa_type pa_type;
 	const u16 max_ll_items;
 	const bool shadow_ram_support;
+	const bool ht_greenfield_support;
 };
 
 /***************************
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index e6a1c6ff44de..0178734499f0 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -507,7 +507,6 @@ struct iwl_ht_info {
 	u8 is_ht;
 	u8 supported_chan_width;
 	u8 sm_ps;
-	u8 is_green_field;
 	struct ieee80211_mcs_info mcs;
 	/* BSS related data */
 	u8 extension_chan_offset;
-- 
cgit v1.2.3


From 15993e08ac027b64b6f3400d32754966b4cac7b0 Mon Sep 17 00:00:00 2001
From: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Date: Thu, 13 Aug 2009 13:31:00 -0700
Subject: iwlwifi: add thermal throttling support to 5150

Adding legacy thermal throttling management support to 5150 NIC

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-5000.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c
index e1e862eb5aca..720d234c9736 100644
--- a/drivers/net/wireless/iwlwifi/iwl-5000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-5000.c
@@ -1411,6 +1411,7 @@ static void iwl5150_temperature(struct iwl_priv *priv)
 	vt = vt / IWL_5150_VOLTAGE_TO_TEMPERATURE_COEFF + offset;
 	/* now vt hold the temperature in Kelvin */
 	priv->temperature = KELVIN_TO_CELSIUS(vt);
+	iwl_tt_handler(priv);
 }
 
 /* Calc max signal level (dBm) among 3 possible receivers */
-- 
cgit v1.2.3


From 396887a2b2ad1ef5e5526fec34dec582baf39b81 Mon Sep 17 00:00:00 2001
From: Daniel C Halperin <daniel.c.halperin@intel.com>
Date: Thu, 13 Aug 2009 13:31:01 -0700
Subject: iwlwifi: fix erroneous use of iwl_rx_packet.len as a length

The field called 'len' in struct iwl_rx_packet is in fact not just a length
field but also includes some flags from the flow handler.  In several places
throughout the driver, this causes incorrect values to be interpreted as
lengths when the field is improperly masked.

In most situations the improper use is for debugging output, and simply results
in an erroneous message, such as:

[551933.070224] ieee80211 phy0: I iwl_rx_statistics Statistics notification received (480 vs -1367342620).

which should read '(480 vs 484)'.

In at least one case this could case bad things to happen:

void iwl_rx_pm_debug_statistics_notif(struct iwl_priv *priv,
                                      struct iwl_rx_mem_buffer *rxb)
{
        struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
        IWL_DEBUG_RADIO(priv, "Dumping %d bytes of unhandled "
                        "notification for %s:\n",
                        le32_to_cpu(pkt->len), get_cmd_string(pkt->hdr.cmd));
        iwl_print_hex_dump(priv, IWL_DL_RADIO, pkt->u.raw, le32_to_cpu(pkt->len)
);
}
EXPORT_SYMBOL(iwl_rx_pm_debug_statistics_notif);

Given the rampant misuse of this field without proper masking throughout the
driver (every use but one), this patch renames the field from 'len' to
'len_n_flags' to reduce confusion.  It also adds the proper masking when
this field is used as a length value.

Signed-off-by: Daniel C Halperin <daniel.c.halperin@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-3945.c     | 5 +++--
 drivers/net/wireless/iwlwifi/iwl-5000.c     | 2 +-
 drivers/net/wireless/iwlwifi/iwl-commands.h | 2 +-
 drivers/net/wireless/iwlwifi/iwl-core.c     | 7 ++++---
 drivers/net/wireless/iwlwifi/iwl-rx.c       | 3 ++-
 5 files changed, 11 insertions(+), 8 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c
index b5a4d2ecdd2d..e9a685d8e3a1 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945.c
@@ -349,12 +349,13 @@ static void iwl3945_rx_reply_tx(struct iwl_priv *priv,
  *
  *****************************************************************************/
 
-void iwl3945_hw_rx_statistics(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
+void iwl3945_hw_rx_statistics(struct iwl_priv *priv,
+		struct iwl_rx_mem_buffer *rxb)
 {
 	struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
 	IWL_DEBUG_RX(priv, "Statistics notification received (%d vs %d).\n",
 		     (int)sizeof(struct iwl3945_notif_statistics),
-		     le32_to_cpu(pkt->len));
+		     le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK);
 
 	memcpy(&priv->statistics_39, pkt->u.raw, sizeof(priv->statistics_39));
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c
index 720d234c9736..1d539e3b8db1 100644
--- a/drivers/net/wireless/iwlwifi/iwl-5000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-5000.c
@@ -494,7 +494,7 @@ static void iwl5000_rx_calib_result(struct iwl_priv *priv,
 {
 	struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
 	struct iwl_calib_hdr *hdr = (struct iwl_calib_hdr *)pkt->u.raw;
-	int len = le32_to_cpu(pkt->len) & FH_RSCSR_FRAME_SIZE_MSK;
+	int len = le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK;
 	int index;
 
 	/* reduce the size of the length field itself */
diff --git a/drivers/net/wireless/iwlwifi/iwl-commands.h b/drivers/net/wireless/iwlwifi/iwl-commands.h
index 9398ad7e42b1..f4303843ff9b 100644
--- a/drivers/net/wireless/iwlwifi/iwl-commands.h
+++ b/drivers/net/wireless/iwlwifi/iwl-commands.h
@@ -3482,7 +3482,7 @@ struct iwl_wimax_coex_cmd {
  *****************************************************************************/
 
 struct iwl_rx_packet {
-	__le32 len;
+	__le32 len_n_flags;
 	struct iwl_cmd_header hdr;
 	union {
 		struct iwl3945_rx_frame rx_frame;
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 62aa87b4358a..f4c2431017e2 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -2294,10 +2294,11 @@ void iwl_rx_pm_debug_statistics_notif(struct iwl_priv *priv,
 				      struct iwl_rx_mem_buffer *rxb)
 {
 	struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
+	u32 len = le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK;
 	IWL_DEBUG_RADIO(priv, "Dumping %d bytes of unhandled "
-			"notification for %s:\n",
-			le32_to_cpu(pkt->len), get_cmd_string(pkt->hdr.cmd));
-	iwl_print_hex_dump(priv, IWL_DL_RADIO, pkt->u.raw, le32_to_cpu(pkt->len));
+			"notification for %s:\n", len,
+			get_cmd_string(pkt->hdr.cmd));
+	iwl_print_hex_dump(priv, IWL_DL_RADIO, pkt->u.raw, len);
 }
 EXPORT_SYMBOL(iwl_rx_pm_debug_statistics_notif);
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-rx.c b/drivers/net/wireless/iwlwifi/iwl-rx.c
index 092d3276175a..353d9a2ddbca 100644
--- a/drivers/net/wireless/iwlwifi/iwl-rx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-rx.c
@@ -539,7 +539,8 @@ void iwl_rx_statistics(struct iwl_priv *priv,
 	struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
 
 	IWL_DEBUG_RX(priv, "Statistics notification received (%d vs %d).\n",
-		     (int)sizeof(priv->statistics), pkt->len);
+		     (int)sizeof(priv->statistics),
+		     le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK);
 
 	change = ((priv->statistics.general.temperature !=
 		   pkt->u.stats.general.temperature) ||
-- 
cgit v1.2.3


From b23da49e6db341f4721476394dd8b95e0be2d179 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Thu, 13 Aug 2009 13:31:02 -0700
Subject: iwlwifi: disable PS by default

Unfortunately, PS currently affects RX performance
significantly enough to warrant disabling it by
default, but give the user the choice to enable it
again with iwconfig.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-core.c | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index f4c2431017e2..c0efa6623c09 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -1580,6 +1580,12 @@ int iwl_setup_mac(struct iwl_priv *priv)
 	/* Firmware does not support this */
 	hw->wiphy->disable_beacon_hints = true;
 
+	/*
+	 * For now, disable PS by default because it affects
+	 * RX performance significantly.
+	 */
+	hw->wiphy->ps_default = false;
+
 	hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
 	/* we create the 802.11 header and a zero-length SSID element */
 	hw->wiphy->max_scan_ie_len = IWL_MAX_PROBE_REQUEST - 24 - 2;
-- 
cgit v1.2.3


From 3ac64beecd27400d12cc7afb4108eef26c499f6a Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Mon, 17 Aug 2009 16:16:53 +0200
Subject: mac80211: allow configure_filter callback to sleep

Over time, a whole bunch of drivers have come up
with their own scheme to delay the configure_filter
operation to a workqueue. To be able to simplify
things, allow configure_filter to sleep, and add
a new prepare_multicast callback that drivers that
need the multicast address list implement. This new
callback must be atomic, but most drivers either
don't care or just calculate a hash which can be
done atomically and then uploaded to the hardware
non-atomically.

A cursory look suggests that at76c50x-usb, ar9170,
mwl8k (which is actually very broken now), rt2x00,
wl1251, wl1271 and zd1211 should make use of this
new capability.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-core.c | 2 +-
 drivers/net/wireless/iwlwifi/iwl-core.h | 3 +--
 2 files changed, 2 insertions(+), 3 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index c0efa6623c09..f1f6dabd8fbd 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -1514,7 +1514,7 @@ EXPORT_SYMBOL(iwl_irq_handle_error);
 void iwl_configure_filter(struct ieee80211_hw *hw,
 			  unsigned int changed_flags,
 			  unsigned int *total_flags,
-			  int mc_count, struct dev_addr_list *mc_list)
+			  u64 multicast)
 {
 	struct iwl_priv *priv = hw->priv;
 	__le32 *filter_flags = &priv->staging_rxon.filter_flags;
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h
index 4ca025a34daf..62d90364b61d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.h
+++ b/drivers/net/wireless/iwlwifi/iwl-core.h
@@ -282,8 +282,7 @@ int iwl_set_decrypted_flag(struct iwl_priv *priv,
 void iwl_irq_handle_error(struct iwl_priv *priv);
 void iwl_configure_filter(struct ieee80211_hw *hw,
 			  unsigned int changed_flags,
-			  unsigned int *total_flags,
-			  int mc_count, struct dev_addr_list *mc_list);
+			  unsigned int *total_flags, u64 multicast);
 int iwl_hw_nic_init(struct iwl_priv *priv);
 int iwl_setup_mac(struct iwl_priv *priv);
 int iwl_set_hw_params(struct iwl_priv *priv);
-- 
cgit v1.2.3


From aa065263ecb0b0df096ff4b02b2fb88060dd2d45 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?G=C3=A1bor=20Stefanik?= <netrolller.3d@gmail.com>
Date: Fri, 21 Aug 2009 20:44:09 +0200
Subject: iwlwifi: Make injection of non-broadcast frames work again
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Commit 1ccb84d87d04df3c76cd4352fe69786d8c7cf016 by Wey-Yi Guy
("iwlwifi: clean up unused NL80211_IFTYPE_MONITOR for Monitor mode")
broke injection of non-broadcast frames to unassociated stations
(causing a SYSASSERT for all such injected frames), due to injected
frames no longer automatically getting a broadcast station ID assigned.
This patch restores the old behavior, fixing the aforementioned
regression.

Also, consistently check for IEEE80211_TX_CTL_INJECTED instead of
iwl_is_monitor_mode in the TX path, as TX_CTL_INJECTED specifically
means that a given packet is coming from a monitor interface, while
iwl_is_monitor_mode only shows whether a monitor interface exists
on the device.

Signed-off-by: Gábor Stefanik <netrolller.3d@gmail.com>
Acked-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-tx.c       | 10 ++++++----
 drivers/net/wireless/iwlwifi/iwl3945-base.c |  9 ++++++---
 2 files changed, 12 insertions(+), 7 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-tx.c b/drivers/net/wireless/iwlwifi/iwl-tx.c
index 7686fc72eb89..7bc9c0039f79 100644
--- a/drivers/net/wireless/iwlwifi/iwl-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-tx.c
@@ -718,10 +718,9 @@ int iwl_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
 		IWL_DEBUG_TX(priv, "Sending REASSOC frame\n");
 #endif
 
-	/* drop all data frame if we are not associated */
+	/* drop all non-injected data frame if we are not associated */
 	if (ieee80211_is_data(fc) &&
-	    (!iwl_is_monitor_mode(priv) ||
-	    !(info->flags & IEEE80211_TX_CTL_INJECTED)) && /* packet injection */
+	    !(info->flags & IEEE80211_TX_CTL_INJECTED) &&
 	    (!iwl_is_associated(priv) ||
 	     ((priv->iw_mode == NL80211_IFTYPE_STATION) && !priv->assoc_id) ||
 	     !priv->assoc_station_added)) {
@@ -732,7 +731,10 @@ int iwl_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
 	hdr_len = ieee80211_hdrlen(fc);
 
 	/* Find (or create) index into station table for destination station */
-	sta_id = iwl_get_sta_id(priv, hdr);
+	if (info->flags & IEEE80211_TX_CTL_INJECTED)
+		sta_id = priv->hw_params.bcast_sta_id;
+	else
+		sta_id = iwl_get_sta_id(priv, hdr);
 	if (sta_id == IWL_INVALID_STATION) {
 		IWL_DEBUG_DROP(priv, "Dropping - INVALID STATION: %pM\n",
 			       hdr->addr1);
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index f339c5bd1fde..34790413eadd 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -518,9 +518,9 @@ static int iwl3945_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
 		IWL_DEBUG_TX(priv, "Sending REASSOC frame\n");
 #endif
 
-	/* drop all data frame if we are not associated */
+	/* drop all non-injected data frame if we are not associated */
 	if (ieee80211_is_data(fc) &&
-	    (!iwl_is_monitor_mode(priv)) && /* packet injection */
+	    !(info->flags & IEEE80211_TX_CTL_INJECTED) &&
 	    (!iwl_is_associated(priv) ||
 	     ((priv->iw_mode == NL80211_IFTYPE_STATION) && !priv->assoc_id))) {
 		IWL_DEBUG_DROP(priv, "Dropping - !iwl_is_associated\n");
@@ -532,7 +532,10 @@ static int iwl3945_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
 	hdr_len = ieee80211_hdrlen(fc);
 
 	/* Find (or create) index into station table for destination station */
-	sta_id = iwl_get_sta_id(priv, hdr);
+	if (info->flags & IEEE80211_TX_CTL_INJECTED)
+		sta_id = priv->hw_params.bcast_sta_id;
+	else
+		sta_id = iwl_get_sta_id(priv, hdr);
 	if (sta_id == IWL_INVALID_STATION) {
 		IWL_DEBUG_DROP(priv, "Dropping - INVALID STATION: %pM\n",
 			       hdr->addr1);
-- 
cgit v1.2.3


From 02eec9c5a1d3e9a2bed5e6221970febef38fc080 Mon Sep 17 00:00:00 2001
From: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Date: Fri, 21 Aug 2009 13:34:14 -0700
Subject: iwlwifi: set default tx power user limit to minimal

Set the tx_power_user_lmt to the lowest power level
this value will get overwritten by channel's max power avg
from eeprom

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-core.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index f1f6dabd8fbd..43781dc9adfd 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -1671,7 +1671,10 @@ int iwl_init_drv(struct iwl_priv *priv)
 	priv->qos_data.qos_cap.val = 0;
 
 	priv->rates_mask = IWL_RATES_MASK;
-	priv->tx_power_user_lmt = IWL_TX_POWER_TARGET_POWER_MAX;
+	/* Set the tx_power_user_lmt to the lowest power level
+	 * this value will get overwritten by channel max power avg
+	 * from eeprom */
+	priv->tx_power_user_lmt = IWL_TX_POWER_TARGET_POWER_MIN;
 
 	ret = iwl_init_channel_map(priv);
 	if (ret) {
-- 
cgit v1.2.3


From 08f2d58d0e573d13a8eb0afbb6f3122da37b9ce3 Mon Sep 17 00:00:00 2001
From: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Date: Fri, 21 Aug 2009 13:34:15 -0700
Subject: iwlwifi: do not allow set tx power over channel power limit

When setting tx power in sysfs, check against max channel tx power
limit instead of IWL_TX_POWER_TARGET_POWER_MAX.

Different devices have different max tx power limit; using
IWL_TX_POWER_TARGET_POWER_MAX can excess the limitaion and give wrong
information.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-core.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 43781dc9adfd..faafcaeae0a6 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -1708,10 +1708,10 @@ int iwl_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force)
 		return -EINVAL;
 	}
 
-	if (tx_power > IWL_TX_POWER_TARGET_POWER_MAX) {
-		IWL_WARN(priv, "Requested user TXPOWER %d above upper limit %d.\n",
-			 tx_power,
-			 IWL_TX_POWER_TARGET_POWER_MAX);
+	if (tx_power > priv->tx_power_channel_lmt) {
+		IWL_WARN(priv,
+			"Requested user TXPOWER %d above upper limit %d.\n",
+			 tx_power, priv->tx_power_channel_lmt);
 		return -EINVAL;
 	}
 
-- 
cgit v1.2.3


From dc1b09733215e19f6a0f676be2744fe2f5471d85 Mon Sep 17 00:00:00 2001
From: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Date: Fri, 21 Aug 2009 13:34:16 -0700
Subject: iwlwifi: name changes from "tx_power_channel_lmt" to
 "tx_power_device_lmt"

Changing the name from "tx_power_channel_lmt" to "tx_power_device_lmt";
to give idea that scope of limit is for overall device, not any
individual channels

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-core.c | 8 ++++----
 drivers/net/wireless/iwlwifi/iwl-dev.h  | 2 +-
 2 files changed, 5 insertions(+), 5 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index faafcaeae0a6..82dadd043b8f 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -543,8 +543,8 @@ int iwlcore_init_geos(struct iwl_priv *priv)
 
 			geo_ch->flags |= ch->ht40_extension_channel;
 
-			if (ch->max_power_avg > priv->tx_power_channel_lmt)
-				priv->tx_power_channel_lmt = ch->max_power_avg;
+			if (ch->max_power_avg > priv->tx_power_device_lmt)
+				priv->tx_power_device_lmt = ch->max_power_avg;
 		} else {
 			geo_ch->flags |= IEEE80211_CHAN_DISABLED;
 		}
@@ -1708,10 +1708,10 @@ int iwl_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force)
 		return -EINVAL;
 	}
 
-	if (tx_power > priv->tx_power_channel_lmt) {
+	if (tx_power > priv->tx_power_device_lmt) {
 		IWL_WARN(priv,
 			"Requested user TXPOWER %d above upper limit %d.\n",
-			 tx_power, priv->tx_power_channel_lmt);
+			 tx_power, priv->tx_power_device_lmt);
 		return -EINVAL;
 	}
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index 0178734499f0..ccea2e4ab45a 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -1215,7 +1215,7 @@ struct iwl_priv {
 
 	/* TX Power */
 	s8 tx_power_user_lmt;
-	s8 tx_power_channel_lmt;
+	s8 tx_power_device_lmt;
 
 
 #ifdef CONFIG_IWLWIFI_DEBUG
-- 
cgit v1.2.3


From 5eadd94bd4006aacf12052c447bcc997bf6ecd28 Mon Sep 17 00:00:00 2001
From: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Date: Fri, 21 Aug 2009 13:34:17 -0700
Subject: iwlwifi: error checking for setting tx_power in sysfs

Perform error checking and report failure when setting tx power from
sysfs.
If fail to set the tx power, do not update the local copy, so user will
not see the incorrect tx power in sysfs

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-agn.c  | 13 +++++++++----
 drivers/net/wireless/iwlwifi/iwl-core.c | 28 +++++++++++++++++++++-------
 2 files changed, 30 insertions(+), 11 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index 2232b1794e76..533b393e8cf6 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -2477,10 +2477,15 @@ static ssize_t store_tx_power(struct device *d,
 	ret = strict_strtoul(buf, 10, &val);
 	if (ret)
 		IWL_INFO(priv, "%s is not in decimal form.\n", buf);
-	else
-		iwl_set_tx_power(priv, val, false);
-
-	return count;
+	else {
+		ret = iwl_set_tx_power(priv, val, false);
+		if (ret)
+			IWL_ERR(priv, "failed setting tx power (0x%d).\n",
+				ret);
+		else
+			ret = count;
+	}
+	return ret;
 }
 
 static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, show_tx_power, store_tx_power);
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 82dadd043b8f..c62c081cfbb7 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -1701,6 +1701,8 @@ EXPORT_SYMBOL(iwl_init_drv);
 int iwl_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force)
 {
 	int ret = 0;
+	s8 prev_tx_power = priv->tx_power_user_lmt;
+
 	if (tx_power < IWL_TX_POWER_TARGET_POWER_MIN) {
 		IWL_WARN(priv, "Requested user TXPOWER %d below lower limit %d.\n",
 			 tx_power,
@@ -1718,15 +1720,27 @@ int iwl_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force)
 	if (priv->tx_power_user_lmt != tx_power)
 		force = true;
 
-	priv->tx_power_user_lmt = tx_power;
-
 	/* if nic is not up don't send command */
-	if (!iwl_is_ready_rf(priv))
-		return ret;
-
-	if (force && priv->cfg->ops->lib->send_tx_power)
-		ret = priv->cfg->ops->lib->send_tx_power(priv);
+	if (iwl_is_ready_rf(priv)) {
+		priv->tx_power_user_lmt = tx_power;
+		if (force && priv->cfg->ops->lib->send_tx_power)
+			ret = priv->cfg->ops->lib->send_tx_power(priv);
+		else if (!priv->cfg->ops->lib->send_tx_power)
+			ret = -EOPNOTSUPP;
+		/*
+		 * if fail to set tx_power, restore the orig. tx power
+		 */
+		if (ret)
+			priv->tx_power_user_lmt = prev_tx_power;
+	}
 
+	/*
+	 * Even this is an async host command, the command
+	 * will always report success from uCode
+	 * So once driver can placing the command into the queue
+	 * successfully, driver can use priv->tx_power_user_lmt
+	 * to reflect the current tx power
+	 */
 	return ret;
 }
 EXPORT_SYMBOL(iwl_set_tx_power);
-- 
cgit v1.2.3


From fcbaf8b06da385c73cb6218f079e9ddba9ee9f7c Mon Sep 17 00:00:00 2001
From: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Date: Fri, 21 Aug 2009 13:34:18 -0700
Subject: iwlwifi: change IWL6000_UCODE_API_MAX to v4

uCode version changed to v4 for 6000 series

The additional parameter added to v4 is providing current tx power for
each chain in tx statistics portion of "statistics notification"
command.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-6000.c     |  4 ++--
 drivers/net/wireless/iwlwifi/iwl-commands.h | 18 ++++++++++++++++--
 2 files changed, 18 insertions(+), 4 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-6000.c b/drivers/net/wireless/iwlwifi/iwl-6000.c
index 383177db7de7..33ef736a4857 100644
--- a/drivers/net/wireless/iwlwifi/iwl-6000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-6000.c
@@ -46,8 +46,8 @@
 #include "iwl-5000-hw.h"
 
 /* Highest firmware API version supported */
-#define IWL6000_UCODE_API_MAX 3
-#define IWL6050_UCODE_API_MAX 3
+#define IWL6000_UCODE_API_MAX 4
+#define IWL6050_UCODE_API_MAX 4
 
 /* Lowest firmware API version supported */
 #define IWL6000_UCODE_API_MIN 1
diff --git a/drivers/net/wireless/iwlwifi/iwl-commands.h b/drivers/net/wireless/iwlwifi/iwl-commands.h
index f4303843ff9b..6b82d4ecd3ef 100644
--- a/drivers/net/wireless/iwlwifi/iwl-commands.h
+++ b/drivers/net/wireless/iwlwifi/iwl-commands.h
@@ -2930,6 +2930,20 @@ struct statistics_rx {
 	struct statistics_rx_ht_phy ofdm_ht;
 } __attribute__ ((packed));
 
+/**
+ * struct statistics_tx_power - current tx power
+ *
+ * @ant_a: current tx power on chain a in 1/2 dB step
+ * @ant_b: current tx power on chain b in 1/2 dB step
+ * @ant_c: current tx power on chain c in 1/2 dB step
+ */
+struct statistics_tx_power {
+	u8 ant_a;
+	u8 ant_b;
+	u8 ant_c;
+	u8 reserved;
+} __attribute__ ((packed));
+
 struct statistics_tx_non_phy_agg {
 	__le32 ba_timeout;
 	__le32 ba_reschedule_frames;
@@ -2941,8 +2955,6 @@ struct statistics_tx_non_phy_agg {
 	__le32 underrun;
 	__le32 bt_prio_kill;
 	__le32 rx_ba_rsp_cnt;
-	__le32 reserved2;
-	__le32 reserved3;
 } __attribute__ ((packed));
 
 struct statistics_tx {
@@ -2961,6 +2973,8 @@ struct statistics_tx {
 	__le32 cts_timeout_collision;
 	__le32 ack_or_ba_timeout_collision;
 	struct statistics_tx_non_phy_agg agg;
+	struct statistics_tx_power tx_power;
+	__le32 reserved1;
 } __attribute__ ((packed));
 
 
-- 
cgit v1.2.3


From f204b2487e5503ca4a9f3e69dcd63f6af979aaac Mon Sep 17 00:00:00 2001
From: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Date: Fri, 21 Aug 2009 13:34:19 -0700
Subject: iwlwifi: show current tx power

debugFs file show current tx power for all the transmit chains

Adding "tx_power" file in /sys/kernal/debug/ieee80211/phy0/iwlagn/debug
to display current tx power for all the active chains in 1/2 dB step.

Show tx power information "Not available" if uCode can not provide the
information or interface is down.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-debug.h   |  1 +
 drivers/net/wireless/iwlwifi/iwl-debugfs.c | 54 ++++++++++++++++++++++++++++++
 2 files changed, 55 insertions(+)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-debug.h b/drivers/net/wireless/iwlwifi/iwl-debug.h
index 723f38a023ce..cbc62904655d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debug.h
+++ b/drivers/net/wireless/iwlwifi/iwl-debug.h
@@ -107,6 +107,7 @@ struct iwl_debugfs {
 		struct dentry *file_ucode_general_stats;
 		struct dentry *file_sensitivity;
 		struct dentry *file_chain_noise;
+		struct dentry *file_tx_power;
 	} dbgfs_debug_files;
 	u32 sram_offset;
 	u32 sram_len;
diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
index f68fb4711da2..fb844859a443 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
@@ -1563,6 +1563,57 @@ static ssize_t iwl_dbgfs_chain_noise_read(struct file *file,
 	return ret;
 }
 
+static ssize_t iwl_dbgfs_tx_power_read(struct file *file,
+					char __user *user_buf,
+					size_t count, loff_t *ppos) {
+
+	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+	char buf[128];
+	int pos = 0;
+	ssize_t ret;
+	const size_t bufsz = sizeof(buf);
+	struct statistics_tx *tx;
+
+	if (!iwl_is_alive(priv))
+		pos += scnprintf(buf + pos, bufsz - pos, "N/A\n");
+	else {
+		/* make request to uCode to retrieve statistics information */
+		mutex_lock(&priv->mutex);
+		ret = iwl_send_statistics_request(priv, 0);
+		mutex_unlock(&priv->mutex);
+
+		if (ret) {
+			IWL_ERR(priv, "Error sending statistics request: %zd\n",
+				ret);
+			return -EAGAIN;
+		}
+		tx = &priv->statistics.tx;
+		if (tx->tx_power.ant_a ||
+		    tx->tx_power.ant_b ||
+		    tx->tx_power.ant_c) {
+			pos += scnprintf(buf + pos, bufsz - pos,
+				"tx power: (1/2 dB step)\n");
+			if ((priv->cfg->valid_tx_ant & ANT_A) &&
+			    tx->tx_power.ant_a)
+				pos += scnprintf(buf + pos, bufsz - pos,
+						"\tantenna A: 0x%X\n",
+						tx->tx_power.ant_a);
+			if ((priv->cfg->valid_tx_ant & ANT_B) &&
+			    tx->tx_power.ant_b)
+				pos += scnprintf(buf + pos, bufsz - pos,
+						"\tantenna B: 0x%X\n",
+						tx->tx_power.ant_b);
+			if ((priv->cfg->valid_tx_ant & ANT_C) &&
+			    tx->tx_power.ant_c)
+				pos += scnprintf(buf + pos, bufsz - pos,
+						"\tantenna C: 0x%X\n",
+						tx->tx_power.ant_c);
+		} else
+			pos += scnprintf(buf + pos, bufsz - pos, "N/A\n");
+	}
+	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+}
+
 DEBUGFS_READ_WRITE_FILE_OPS(rx_statistics);
 DEBUGFS_READ_WRITE_FILE_OPS(tx_statistics);
 DEBUGFS_READ_WRITE_FILE_OPS(traffic_log);
@@ -1573,6 +1624,7 @@ DEBUGFS_READ_FILE_OPS(ucode_tx_stats);
 DEBUGFS_READ_FILE_OPS(ucode_general_stats);
 DEBUGFS_READ_FILE_OPS(sensitivity);
 DEBUGFS_READ_FILE_OPS(chain_noise);
+DEBUGFS_READ_FILE_OPS(tx_power);
 
 /*
  * Create the debugfs files and directories
@@ -1621,6 +1673,7 @@ int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
 	DEBUGFS_ADD_FILE(traffic_log, debug);
 	DEBUGFS_ADD_FILE(rx_queue, debug);
 	DEBUGFS_ADD_FILE(tx_queue, debug);
+	DEBUGFS_ADD_FILE(tx_power, debug);
 	if ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) != CSR_HW_REV_TYPE_3945) {
 		DEBUGFS_ADD_FILE(ucode_rx_stats, debug);
 		DEBUGFS_ADD_FILE(ucode_tx_stats, debug);
@@ -1674,6 +1727,7 @@ void iwl_dbgfs_unregister(struct iwl_priv *priv)
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_traffic_log);
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_rx_queue);
 	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_tx_queue);
+	DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_tx_power);
 	if ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) != CSR_HW_REV_TYPE_3945) {
 		DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.
 			file_ucode_rx_stats);
-- 
cgit v1.2.3


From 7ebaeff8ae0ba14c086b117f451c5b40bea8a64b Mon Sep 17 00:00:00 2001
From: Daniel C Halperin <daniel.c.halperin@intel.com>
Date: Fri, 21 Aug 2009 13:34:20 -0700
Subject: iwlwifi: clear rate control flags on non-HT packet

Clear the flags (most importantly, the IEEE80211_TX_RC_MCS flag)
when sending a non-HT packet so that the rate index can be properly treated.
This fixes the reporting of legacy rates in wireless-extensions for packets
sent after an HT packet.

Signed-off-by: Daniel C Halperin <daniel.c.halperin@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-agn-rs.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
index fee110de5c6a..26ec969e265d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
@@ -2546,6 +2546,7 @@ static void rs_get_rate(void *priv_r, struct ieee80211_sta *sta, void *priv_sta,
 			rate_idx = rate_lowest_index(sband, sta);
 		else if (sband->band == IEEE80211_BAND_5GHZ)
 			rate_idx -= IWL_FIRST_OFDM_RATE;
+		info->control.rates[0].flags = 0;
 	}
 	info->control.rates[0].idx = rate_idx;
 
-- 
cgit v1.2.3


From c5f8cdb72e3940d647980358dec0aba945a3bb57 Mon Sep 17 00:00:00 2001
From: Daniel C Halperin <daniel.c.halperin@intel.com>
Date: Fri, 21 Aug 2009 13:34:21 -0700
Subject: iwlwifi: set HT flags in ieee80211_rx_status for received packets

Add code to set the HT flags (HT, 40 MHz, Short guard interval) in
the ieee80211_rx_status field passed to mac80211.  This ensures that mac80211
processes these HT packets correctly.

Signed-off-by: Daniel C Halperin <daniel.c.halperin@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-rx.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-rx.c b/drivers/net/wireless/iwlwifi/iwl-rx.c
index 353d9a2ddbca..e34d3fcb6c3d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-rx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-rx.c
@@ -915,6 +915,7 @@ void iwl_rx_reply_rx(struct iwl_priv *priv,
 	u32 len;
 	u32 ampdu_status;
 	u16 fc;
+	u32 rate_n_flags;
 
 	/**
 	 * REPLY_RX and REPLY_RX_MPDU_CMD are handled differently.
@@ -1032,6 +1033,15 @@ void iwl_rx_reply_rx(struct iwl_priv *priv,
 	if (phy_res->phy_flags & RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK)
 		rx_status.flag |= RX_FLAG_SHORTPRE;
 
+	/* Set up the HT phy flags */
+	rate_n_flags = le32_to_cpu(phy_res->rate_n_flags);
+	if (rate_n_flags & RATE_MCS_HT_MSK)
+		rx_status.flag |= RX_FLAG_HT;
+	if (rate_n_flags & RATE_MCS_HT40_MSK)
+		rx_status.flag |= RX_FLAG_40MHZ;
+	if (rate_n_flags & RATE_MCS_SGI_MSK)
+		rx_status.flag |= RX_FLAG_SHORT_GI;
+
 	if (iwl_is_network_packet(priv, header)) {
 		priv->last_rx_rssi = rx_status.signal;
 		priv->last_beacon_time =  priv->ucode_beacon_time;
-- 
cgit v1.2.3


From c4d9b50986b4264f32883d19ac260a11647860e1 Mon Sep 17 00:00:00 2001
From: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Date: Fri, 21 Aug 2009 13:34:22 -0700
Subject: iwlwifi: remove duplicated define

Remove duplicated define "STA_FLG_PWR_SAVE_MSK"

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-commands.h | 1 -
 1 file changed, 1 deletion(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-commands.h b/drivers/net/wireless/iwlwifi/iwl-commands.h
index 6b82d4ecd3ef..2c5c88fc38f5 100644
--- a/drivers/net/wireless/iwlwifi/iwl-commands.h
+++ b/drivers/net/wireless/iwlwifi/iwl-commands.h
@@ -886,7 +886,6 @@ struct iwl_qosparam_cmd {
 
 #define STA_FLG_TX_RATE_MSK		cpu_to_le32(1 << 2);
 #define STA_FLG_PWR_SAVE_MSK		cpu_to_le32(1 << 8);
-#define STA_FLG_PWR_SAVE_MSK		cpu_to_le32(1 << 8);
 #define STA_FLG_RTS_MIMO_PROT_MSK	cpu_to_le32(1 << 17)
 #define STA_FLG_AGG_MPDU_8US_MSK	cpu_to_le32(1 << 18)
 #define STA_FLG_MAX_AGG_SIZE_POS	(19)
-- 
cgit v1.2.3


From ab9fd1bf76ffebf6c3b3d5800092387edf1201b9 Mon Sep 17 00:00:00 2001
From: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Date: Fri, 21 Aug 2009 13:34:23 -0700
Subject: iwlwifi: read enhanced tx power info from EEPROM image

For 6000 series and up, additional enhanced regulatory tx power
limitation information is added to EEPROM image.

In order to setup the tx power limitation per channel correctly. Read
the enhanced tx power information from EEPROM image and update
accordingly.

The information is provided per SISO (a,b,c) chain based, it also has
information for both MIMO2 and MIMO3. For tx power regulatory
limitation, take the highest number from all the chains and update.
Also update tx_power_user_lmt to the highest power supported by any
channels and chains

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-6000.c   |   1 +
 drivers/net/wireless/iwlwifi/iwl-eeprom.c | 252 ++++++++++++++++++++++++++++++
 drivers/net/wireless/iwlwifi/iwl-eeprom.h |  80 +++++++++-
 3 files changed, 332 insertions(+), 1 deletion(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-6000.c b/drivers/net/wireless/iwlwifi/iwl-6000.c
index 33ef736a4857..82b9c93dff54 100644
--- a/drivers/net/wireless/iwlwifi/iwl-6000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-6000.c
@@ -126,6 +126,7 @@ static struct iwl_lib_ops iwl6000_lib = {
 		.release_semaphore = iwlcore_eeprom_release_semaphore,
 		.calib_version	= iwl5000_eeprom_calib_version,
 		.query_addr = iwl5000_eeprom_query_addr,
+		.update_enhanced_txpower = iwlcore_eeprom_enhanced_txpower,
 	},
 	.post_associate = iwl_post_associate,
 	.isr = iwl_isr_ict,
diff --git a/drivers/net/wireless/iwlwifi/iwl-eeprom.c b/drivers/net/wireless/iwlwifi/iwl-eeprom.c
index 01b95e89009a..3d2b93a61e62 100644
--- a/drivers/net/wireless/iwlwifi/iwl-eeprom.c
+++ b/drivers/net/wireless/iwlwifi/iwl-eeprom.c
@@ -135,6 +135,78 @@ static const u8 iwl_eeprom_band_7[] = {       /* 5.2 ht40 channel */
 	36, 44, 52, 60, 100, 108, 116, 124, 132, 149, 157
 };
 
+/**
+ * struct iwl_txpwr_section: eeprom section information
+ * @offset: indirect address into eeprom image
+ * @count: number of "struct iwl_eeprom_enhanced_txpwr" in this section
+ * @band: band type for the section
+ * @is_common - true: common section, false: channel section
+ * @is_cck - true: cck section, false: not cck section
+ * @is_ht_40 - true: all channel in the section are HT40 channel,
+ * 	       false: legacy or HT 20 MHz
+ *	       ignore if it is common section
+ * @iwl_eeprom_section_channel: channel array in the section,
+ *	       ignore if common section
+ */
+struct iwl_txpwr_section {
+	u32 offset;
+	u8 count;
+	enum ieee80211_band band;
+	bool is_common;
+	bool is_cck;
+	bool is_ht40;
+	u8 iwl_eeprom_section_channel[EEPROM_MAX_TXPOWER_SECTION_ELEMENTS];
+};
+
+/**
+ * section 1 - 3 are regulatory tx power apply to all channels based on
+ *    modulation: CCK, OFDM
+ *    Band: 2.4GHz, 5.2GHz
+ * section 4 - 10 are regulatory tx power apply to specified channels
+ *    For example:
+ *	1L - Channel 1 Legacy
+ *	1HT - Channel 1 HT
+ *	(1,+1) - Channel 1 HT40 "_above_"
+ *
+ * Section 1: all CCK channels
+ * Section 2: all 2.4 GHz OFDM (Legacy, HT and HT40) channels
+ * Section 3: all 5.2 GHz OFDM (Legacy, HT and HT40) channels
+ * Section 4: 2.4 GHz 20MHz channels: 1L, 1HT, 2L, 2HT, 10L, 10HT, 11L, 11HT
+ * Section 5: 2.4 GHz 40MHz channels: (1,+1) (2,+1) (6,+1) (7,+1) (9,+1)
+ * Section 6: 5.2 GHz 20MHz channels: 36L, 64L, 100L, 36HT, 64HT, 100HT
+ * Section 7: 5.2 GHz 40MHz channels: (36,+1) (60,+1) (100,+1)
+ * Section 8: 2.4 GHz channel: 13L, 13HT
+ * Section 9: 2.4 GHz channel: 140L, 140HT
+ * Section 10: 2.4 GHz 40MHz channels: (132,+1)  (44,+1)
+ *
+ */
+static const struct iwl_txpwr_section enhinfo[] = {
+	{ EEPROM_LB_CCK_20_COMMON, 1, IEEE80211_BAND_2GHZ, true, true, false },
+	{ EEPROM_LB_OFDM_COMMON, 3, IEEE80211_BAND_2GHZ, true, false, false },
+	{ EEPROM_HB_OFDM_COMMON, 3, IEEE80211_BAND_5GHZ, true, false, false },
+	{ EEPROM_LB_OFDM_20_BAND, 8, IEEE80211_BAND_2GHZ,
+		false, false, false,
+		{1, 1, 2, 2, 10, 10, 11, 11 } },
+	{ EEPROM_LB_OFDM_HT40_BAND, 5, IEEE80211_BAND_2GHZ,
+		false, false, true,
+		{ 1, 2, 6, 7, 9 } },
+	{ EEPROM_HB_OFDM_20_BAND, 6, IEEE80211_BAND_5GHZ,
+		false, false, false,
+		{ 36, 64, 100, 36, 64, 100 } },
+	{ EEPROM_HB_OFDM_HT40_BAND, 3, IEEE80211_BAND_5GHZ,
+		false, false, true,
+		{ 36, 60, 100 } },
+	{ EEPROM_LB_OFDM_20_CHANNEL_13, 2, IEEE80211_BAND_2GHZ,
+		false, false, false,
+		{ 13, 13 } },
+	{ EEPROM_HB_OFDM_20_CHANNEL_140, 2, IEEE80211_BAND_5GHZ,
+		false, false, false,
+		{ 140, 140 } },
+	{ EEPROM_HB_OFDM_HT40_BAND_1, 2, IEEE80211_BAND_5GHZ,
+		false, false, true,
+		{ 132, 44 } },
+};
+
 /******************************************************************************
  *
  * EEPROM related functions
@@ -643,6 +715,178 @@ static int iwl_mod_ht40_chan_info(struct iwl_priv *priv,
 	return 0;
 }
 
+/**
+ * iwl_get_max_txpower_avg - get the highest tx power from all chains.
+ *     find the highest tx power from all chains for the channel
+ */
+static s8 iwl_get_max_txpower_avg(struct iwl_priv *priv,
+		struct iwl_eeprom_enhanced_txpwr *enhanced_txpower, int element)
+{
+	s8 max_txpower_avg = 0; /* (dBm) */
+
+	IWL_DEBUG_INFO(priv, "%d - "
+			"chain_a: %d dB chain_b: %d dB "
+			"chain_c: %d dB mimo2: %d dB mimo3: %d dB\n",
+			element,
+			enhanced_txpower[element].chain_a_max >> 1,
+			enhanced_txpower[element].chain_b_max >> 1,
+			enhanced_txpower[element].chain_c_max >> 1,
+			enhanced_txpower[element].mimo2_max >> 1,
+			enhanced_txpower[element].mimo3_max >> 1);
+	/* Take the highest tx power from any valid chains */
+	if ((priv->cfg->valid_tx_ant & ANT_A) &&
+	    (enhanced_txpower[element].chain_a_max > max_txpower_avg))
+		max_txpower_avg = enhanced_txpower[element].chain_a_max;
+	if ((priv->cfg->valid_tx_ant & ANT_B) &&
+	    (enhanced_txpower[element].chain_b_max > max_txpower_avg))
+		max_txpower_avg = enhanced_txpower[element].chain_b_max;
+	if ((priv->cfg->valid_tx_ant & ANT_C) &&
+	    (enhanced_txpower[element].chain_c_max > max_txpower_avg))
+		max_txpower_avg = enhanced_txpower[element].chain_c_max;
+	if (((priv->cfg->valid_tx_ant == ANT_AB) |
+	    (priv->cfg->valid_tx_ant == ANT_BC) |
+	    (priv->cfg->valid_tx_ant == ANT_AC)) &&
+	    (enhanced_txpower[element].mimo2_max > max_txpower_avg))
+		max_txpower_avg =  enhanced_txpower[element].mimo2_max;
+	if ((priv->cfg->valid_tx_ant == ANT_ABC) &&
+	    (enhanced_txpower[element].mimo3_max > max_txpower_avg))
+		max_txpower_avg = enhanced_txpower[element].mimo3_max;
+
+	/* max. tx power in EEPROM is in 1/2 dBm format
+	 * convert from 1/2 dBm to dBm
+	 */
+	return max_txpower_avg >> 1;
+}
+
+/**
+ * iwl_update_common_txpower: update channel tx power
+ *     update tx power per band based on EEPROM enhanced tx power info.
+ */
+static s8 iwl_update_common_txpower(struct iwl_priv *priv,
+		struct iwl_eeprom_enhanced_txpwr *enhanced_txpower,
+		int section, int element)
+{
+	struct iwl_channel_info *ch_info;
+	int ch;
+	bool is_ht40 = false;
+	s8 max_txpower_avg; /* (dBm) */
+
+	/* it is common section, contain all type (Legacy, HT and HT40)
+	 * based on the element in the section to determine
+	 * is it HT 40 or not
+	 */
+	if (element == EEPROM_TXPOWER_COMMON_HT40_INDEX)
+		is_ht40 = true;
+	max_txpower_avg =
+		iwl_get_max_txpower_avg(priv, enhanced_txpower, element);
+	ch_info = priv->channel_info;
+
+	for (ch = 0; ch < priv->channel_count; ch++) {
+		/* find matching band and update tx power if needed */
+		if ((ch_info->band == enhinfo[section].band) &&
+		    (ch_info->max_power_avg < max_txpower_avg) && (!is_ht40)) {
+			/* Update regulatory-based run-time data */
+			ch_info->max_power_avg = ch_info->curr_txpow =
+			    max_txpower_avg;
+			ch_info->scan_power = max_txpower_avg;
+		}
+		if ((ch_info->band == enhinfo[section].band) && is_ht40 &&
+		    ch_info->ht40_max_power_avg &&
+		    (ch_info->ht40_max_power_avg < max_txpower_avg)) {
+			/* Update regulatory-based run-time data */
+			ch_info->ht40_max_power_avg = max_txpower_avg;
+			ch_info->ht40_curr_txpow = max_txpower_avg;
+			ch_info->ht40_scan_power = max_txpower_avg;
+		}
+		ch_info++;
+	}
+	return max_txpower_avg;
+}
+
+/**
+ * iwl_update_channel_txpower: update channel tx power
+ *      update channel tx power based on EEPROM enhanced tx power info.
+ */
+static s8 iwl_update_channel_txpower(struct iwl_priv *priv,
+		struct iwl_eeprom_enhanced_txpwr *enhanced_txpower,
+		int section, int element)
+{
+	struct iwl_channel_info *ch_info;
+	int ch;
+	u8 channel;
+	s8 max_txpower_avg; /* (dBm) */
+
+	channel = enhinfo[section].iwl_eeprom_section_channel[element];
+	max_txpower_avg =
+		iwl_get_max_txpower_avg(priv, enhanced_txpower, element);
+
+	ch_info = priv->channel_info;
+	for (ch = 0; ch < priv->channel_count; ch++) {
+		/* find matching channel and update tx power if needed */
+		if (ch_info->channel == channel) {
+			if ((ch_info->max_power_avg < max_txpower_avg) &&
+			    (!enhinfo[section].is_ht40)) {
+				/* Update regulatory-based run-time data */
+				ch_info->max_power_avg = max_txpower_avg;
+				ch_info->curr_txpow = max_txpower_avg;
+				ch_info->scan_power = max_txpower_avg;
+			}
+			if ((enhinfo[section].is_ht40) &&
+			    (ch_info->ht40_max_power_avg) &&
+			    (ch_info->ht40_max_power_avg < max_txpower_avg)) {
+				/* Update regulatory-based run-time data */
+				ch_info->ht40_max_power_avg = max_txpower_avg;
+				ch_info->ht40_curr_txpow = max_txpower_avg;
+				ch_info->ht40_scan_power = max_txpower_avg;
+			}
+			break;
+		}
+		ch_info++;
+	}
+	return max_txpower_avg;
+}
+
+/**
+ * iwlcore_eeprom_enhanced_txpower: process enhanced tx power info
+ */
+void iwlcore_eeprom_enhanced_txpower(struct iwl_priv *priv)
+{
+	int eeprom_section_count = 0;
+	int section, element;
+	struct iwl_eeprom_enhanced_txpwr *enhanced_txpower;
+	u32 offset;
+	s8 max_txpower_avg; /* (dBm) */
+
+	/* Loop through all the sections
+	 * adjust bands and channel's max tx power
+	 * Set the tx_power_user_lmt to the highest power
+	 * supported by any channels and chains
+	 */
+	for (section = 0; section < ARRAY_SIZE(enhinfo); section++) {
+		eeprom_section_count = enhinfo[section].count;
+		offset = enhinfo[section].offset;
+		enhanced_txpower = (struct iwl_eeprom_enhanced_txpwr *)
+				iwl_eeprom_query_addr(priv, offset);
+
+		for (element = 0; element < eeprom_section_count; element++) {
+			if (enhinfo[section].is_common)
+				max_txpower_avg =
+					iwl_update_common_txpower(priv,
+					enhanced_txpower, section, element);
+			else
+				max_txpower_avg =
+					iwl_update_channel_txpower(priv,
+					enhanced_txpower, section, element);
+
+			/* Update the tx_power_user_lmt to the highest power
+			 * supported by any channel */
+			if (max_txpower_avg > priv->tx_power_user_lmt)
+				priv->tx_power_user_lmt = max_txpower_avg;
+		}
+	}
+}
+EXPORT_SYMBOL(iwlcore_eeprom_enhanced_txpower);
+
 #define CHECK_AND_PRINT_I(x) ((eeprom_ch_info[ch].flags & EEPROM_CHANNEL_##x) \
 			    ? # x " " : "")
 
@@ -790,6 +1034,14 @@ int iwl_init_channel_map(struct iwl_priv *priv)
 		}
 	}
 
+	/* for newer device (6000 series and up)
+	 * EEPROM contain enhanced tx power information
+	 * driver need to process addition information
+	 * to determine the max channel tx power limits
+	 */
+	if (priv->cfg->ops->lib->eeprom_ops.update_enhanced_txpower)
+		priv->cfg->ops->lib->eeprom_ops.update_enhanced_txpower(priv);
+
 	return 0;
 }
 EXPORT_SYMBOL(iwl_init_channel_map);
diff --git a/drivers/net/wireless/iwlwifi/iwl-eeprom.h b/drivers/net/wireless/iwlwifi/iwl-eeprom.h
index ca7920a8f52f..6b68db7b1b81 100644
--- a/drivers/net/wireless/iwlwifi/iwl-eeprom.h
+++ b/drivers/net/wireless/iwlwifi/iwl-eeprom.h
@@ -118,6 +118,30 @@ struct iwl_eeprom_channel {
 	s8 max_power_avg;	/* max power (dBm) on this chnl, limit 31 */
 } __attribute__ ((packed));
 
+/**
+ * iwl_eeprom_enhanced_txpwr structure
+ *    This structure presents the enhanced regulatory tx power limit layout
+ *    in eeprom image
+ *    Enhanced regulatory tx power portion of eeprom image can be broken down
+ *    into individual structures; each one is 8 bytes in size and contain the
+ *    following information
+ * @chain_a_max_pwr: chain a max power in 1/2 dBm
+ * @chain_b_max_pwr: chain b max power in 1/2 dBm
+ * @chain_c_max_pwr: chain c max power in 1/2 dBm
+ * @mimo2_max_pwr: mimo2 max power in 1/2 dBm
+ * @mimo3_max_pwr: mimo3 max power in 1/2 dBm
+ *
+ */
+struct iwl_eeprom_enhanced_txpwr {
+	u16 reserved;
+	s8 chain_a_max;
+	s8 chain_b_max;
+	s8 chain_c_max;
+	s8 reserved1;
+	s8 mimo2_max;
+	s8 mimo3_max;
+} __attribute__ ((packed));
+
 /* 3945 Specific */
 #define EEPROM_3945_EEPROM_VERSION	(0x2f)
 
@@ -175,6 +199,59 @@ struct iwl_eeprom_channel {
 #define EEPROM_5000_REG_BAND_52_HT40_CHANNELS  ((0x92)\
 		| INDIRECT_ADDRESS | INDIRECT_REGULATORY)   /* 22  bytes */
 
+/* 6000 and up regulatory tx power - indirect access */
+/* max. elements per section */
+#define EEPROM_MAX_TXPOWER_SECTION_ELEMENTS	(8)
+#define EEPROM_TXPOWER_COMMON_HT40_INDEX	(2)
+
+/**
+ * Partition the enhanced tx power portion of eeprom image into
+ * 10 sections based on band, modulation, frequency and channel
+ *
+ * Section 1: all CCK channels
+ * Section 2: all 2.4 GHz OFDM (Legacy, HT and HT40 ) channels
+ * Section 3: all 5.2 GHz OFDM (Legacy, HT and HT40) channels
+ * Section 4: 2.4 GHz 20MHz channels: 1, 2, 10, 11. Both Legacy and HT
+ * Section 5: 2.4 GHz 40MHz channels: 1, 2, 6, 7, 9, (_above_)
+ * Section 6: 5.2 GHz 20MHz channels: 36, 64, 100, both Legacy and HT
+ * Section 7: 5.2 GHz 40MHz channels: 36, 60, 100 (_above_)
+ * Section 8: 2.4 GHz channel 13, Both Legacy and HT
+ * Section 9: 2.4 GHz channel 140, Both Legacy and HT
+ * Section 10: 2.4 GHz 40MHz channels: 132, 44 (_above_)
+ */
+/* 2.4 GHz band: CCK */
+#define EEPROM_LB_CCK_20_COMMON       ((0xAA)\
+		| INDIRECT_ADDRESS | INDIRECT_REGULATORY)   /* 8 bytes */
+/* 2.4 GHz band: 20MHz-Legacy, 20MHz-HT, 40MHz-HT */
+#define EEPROM_LB_OFDM_COMMON       ((0xB2)\
+		| INDIRECT_ADDRESS | INDIRECT_REGULATORY)   /* 24 bytes */
+/* 5.2 GHz band: 20MHz-Legacy, 20MHz-HT, 40MHz-HT */
+#define EEPROM_HB_OFDM_COMMON       ((0xCA)\
+		| INDIRECT_ADDRESS | INDIRECT_REGULATORY)   /* 24 bytes */
+/* 2.4GHz band channels:
+ *	1Legacy, 1HT, 2Legacy, 2HT, 10Legacy, 10HT, 11Legacy, 11HT */
+#define EEPROM_LB_OFDM_20_BAND       ((0xE2)\
+		| INDIRECT_ADDRESS | INDIRECT_REGULATORY)   /* 64 bytes */
+/* 2.4 GHz band HT40 channels: (1,+1) (2,+1) (6,+1) (7,+1) (9,+1) */
+#define EEPROM_LB_OFDM_HT40_BAND       ((0x122)\
+		| INDIRECT_ADDRESS | INDIRECT_REGULATORY)   /* 40 bytes */
+/* 5.2GHz band channels: 36Legacy, 36HT, 64Legacy, 64HT, 100Legacy, 100HT */
+#define EEPROM_HB_OFDM_20_BAND       ((0x14A)\
+		| INDIRECT_ADDRESS | INDIRECT_REGULATORY)   /* 48 bytes */
+/* 5.2 GHz band HT40 channels: (36,+1) (60,+1) (100,+1) */
+#define EEPROM_HB_OFDM_HT40_BAND       ((0x17A)\
+		| INDIRECT_ADDRESS | INDIRECT_REGULATORY)   /* 24 bytes */
+/* 2.4 GHz band, channnel 13: Legacy, HT */
+#define EEPROM_LB_OFDM_20_CHANNEL_13       ((0x192)\
+		| INDIRECT_ADDRESS | INDIRECT_REGULATORY)   /* 16 bytes */
+/* 5.2 GHz band, channnel 140: Legacy, HT */
+#define EEPROM_HB_OFDM_20_CHANNEL_140       ((0x1A2)\
+		| INDIRECT_ADDRESS | INDIRECT_REGULATORY)   /* 16 bytes */
+/* 5.2 GHz band, HT40 channnels (132,+1) (44,+1) */
+#define EEPROM_HB_OFDM_HT40_BAND_1       ((0x1B2)\
+		| INDIRECT_ADDRESS | INDIRECT_REGULATORY)   /* 16 bytes */
+
+
 /* 5050 Specific */
 #define EEPROM_5050_TX_POWER_VERSION    (4)
 #define EEPROM_5050_EEPROM_VERSION	(0x21E)
@@ -389,6 +466,7 @@ struct iwl_eeprom_ops {
 	void (*release_semaphore) (struct iwl_priv *priv);
 	u16 (*calib_version) (struct iwl_priv *priv);
 	const u8* (*query_addr) (const struct iwl_priv *priv, size_t offset);
+	void (*update_enhanced_txpower) (struct iwl_priv *priv);
 };
 
 
@@ -403,7 +481,7 @@ int iwlcore_eeprom_verify_signature(struct iwl_priv *priv);
 int iwlcore_eeprom_acquire_semaphore(struct iwl_priv *priv);
 void iwlcore_eeprom_release_semaphore(struct iwl_priv *priv);
 const u8 *iwlcore_eeprom_query_addr(const struct iwl_priv *priv, size_t offset);
-
+void iwlcore_eeprom_enhanced_txpower(struct iwl_priv *priv);
 int iwl_init_channel_map(struct iwl_priv *priv);
 void iwl_free_channel_map(struct iwl_priv *priv);
 const struct iwl_channel_info *iwl_get_channel_info(
-- 
cgit v1.2.3


From b2ccb4dbe77eaebb6b286402c31b4e2b1155660f Mon Sep 17 00:00:00 2001
From: Abhijeet Kolekar <abhijeet.kolekar@intel.com>
Date: Fri, 21 Aug 2009 13:34:24 -0700
Subject: iwlwifi: fix remove key error

Fix following error by sending synchronous command and waiting for the command
to complete.

mac80211-phy0: failed to remove key (0, ff:ff:ff:ff:ff:ff) from hardware (-16).

-16 is EBUSY error. The asynchronous command tests for STATUS_EXIT_PENDING
while interface is getting down and it returns -EBUSY error if set.
Changing the host command from asynchronous call to synchronous call
enables command to be run while interface is going down.

Signed-off-by: Abhijeet Kolekar <abhijeet.kolekar@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-sta.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-sta.c b/drivers/net/wireless/iwlwifi/iwl-sta.c
index c6633fec8216..a2b9ec82b965 100644
--- a/drivers/net/wireless/iwlwifi/iwl-sta.c
+++ b/drivers/net/wireless/iwlwifi/iwl-sta.c
@@ -520,7 +520,7 @@ int iwl_send_static_wepkey_cmd(struct iwl_priv *priv, u8 send_if_empty)
 	struct iwl_host_cmd cmd = {
 		.id = REPLY_WEPKEY,
 		.data = wep_cmd,
-		.flags = CMD_ASYNC,
+		.flags = CMD_SYNC,
 	};
 
 	memset(wep_cmd, 0, cmd_size +
-- 
cgit v1.2.3


From 5bddf54962bf68002816df710348ba197d6391bb Mon Sep 17 00:00:00 2001
From: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Date: Fri, 21 Aug 2009 13:34:25 -0700
Subject: iwlwifi: fix unloading driver while scanning

If NetworkManager is busy scanning when user
tries to unload the module, the driver can not be unloaded
because HW still scanning.

Make sure driver sends abort scan host command to uCode if it
is in the middle of scanning during driver unload.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-agn.c  | 2 +-
 drivers/net/wireless/iwlwifi/iwl-scan.c | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index 533b393e8cf6..00457bff1ed1 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -2155,7 +2155,7 @@ static void iwl_mac_stop(struct ieee80211_hw *hw)
 
 	priv->is_open = 0;
 
-	if (iwl_is_ready_rf(priv)) {
+	if (iwl_is_ready_rf(priv) || test_bit(STATUS_SCAN_HW, &priv->status)) {
 		/* stop mac, cancel any scan request and clear
 		 * RXON_FILTER_ASSOC_MSK BIT
 		 */
diff --git a/drivers/net/wireless/iwlwifi/iwl-scan.c b/drivers/net/wireless/iwlwifi/iwl-scan.c
index c4c916df4a43..4f3a108fa990 100644
--- a/drivers/net/wireless/iwlwifi/iwl-scan.c
+++ b/drivers/net/wireless/iwlwifi/iwl-scan.c
@@ -796,7 +796,8 @@ void iwl_bg_abort_scan(struct work_struct *work)
 {
 	struct iwl_priv *priv = container_of(work, struct iwl_priv, abort_scan);
 
-	if (!iwl_is_ready(priv))
+	if (!test_bit(STATUS_READY, &priv->status) ||
+	    !test_bit(STATUS_GEO_CONFIGURED, &priv->status))
 		return;
 
 	mutex_lock(&priv->mutex);
-- 
cgit v1.2.3


From 1303dcfd0504565aef8ef63487443ab1f814c00f Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Wed, 26 Aug 2009 22:15:13 +0200
Subject: iwlwifi: fix ICT irq table endianness

The ICT IRQ table is a set of __le32 values, not u32 values,
so when reading it we need to take into account that it has
to be converted to CPU endianness. This was causing a lot of
trouble on my powerpc box where various things would simply
not work for no apparent reason with 5xxx cards, but worked
with 4965 -- which doesn't use the ICT table.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-core.c | 10 +++++-----
 drivers/net/wireless/iwlwifi/iwl-dev.h  |  2 +-
 2 files changed, 6 insertions(+), 6 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index c62c081cfbb7..0bfd4e918139 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -1823,7 +1823,7 @@ int iwl_reset_ict(struct iwl_priv *priv)
 	spin_lock_irqsave(&priv->lock, flags);
 	iwl_disable_interrupts(priv);
 
-	memset(&priv->ict_tbl[0],0, sizeof(u32) * ICT_COUNT);
+	memset(&priv->ict_tbl[0], 0, sizeof(u32) * ICT_COUNT);
 
 	val = priv->aligned_ict_tbl_dma >> PAGE_SHIFT;
 
@@ -1901,13 +1901,13 @@ irqreturn_t iwl_isr_ict(int irq, void *data)
 	/* read all entries that not 0 start with ict_index */
 	while (priv->ict_tbl[priv->ict_index]) {
 
-		val |= priv->ict_tbl[priv->ict_index];
+		val |= le32_to_cpu(priv->ict_tbl[priv->ict_index]);
 		IWL_DEBUG_ISR(priv, "ICT index %d value 0x%08X\n",
-					priv->ict_index,
-					priv->ict_tbl[priv->ict_index]);
+				priv->ict_index,
+				le32_to_cpu(priv->ict_tbl[priv->ict_index]));
 		priv->ict_tbl[priv->ict_index] = 0;
 		priv->ict_index = iwl_queue_inc_wrap(priv->ict_index,
-								ICT_COUNT);
+						     ICT_COUNT);
 
 	}
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index ccea2e4ab45a..028d50599550 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -1170,7 +1170,7 @@ struct iwl_priv {
 	struct iwl_hw_params hw_params;
 
 	/* INT ICT Table */
-	u32 *ict_tbl;
+	__le32 *ict_tbl;
 	dma_addr_t ict_tbl_dma;
 	dma_addr_t aligned_ict_tbl_dma;
 	int ict_index;
-- 
cgit v1.2.3


From 5027309b5581e9c251a46f0ecbf88996d5e0f1e0 Mon Sep 17 00:00:00 2001
From: Daniel C Halperin <daniel.c.halperin@intel.com>
Date: Fri, 28 Aug 2009 09:44:45 -0700
Subject: iwlwifi: remove 60 Mbps from sband bitrates table

ieee80211_supported_band is supposed to only contain legacy rates in the
bitrates table (HT rates go in the ieee80211_sta_ht_cap substruct).  Make
iwlwifi driver obey this restriction by removing the 60 Mbps rate. Also, clean
up a few pieces of other code that formerly relied on 60 Mbps being in
sband->bitrates.

Signed-off-by: Daniel C Halperin <daniel.c.halperin@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-agn-rs.c | 48 +++++++++++++------------------
 drivers/net/wireless/iwlwifi/iwl-agn-rs.h |  1 +
 drivers/net/wireless/iwlwifi/iwl-core.c   | 12 ++++----
 3 files changed, 27 insertions(+), 34 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
index 26ec969e265d..8239e5508cac 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
@@ -818,15 +818,15 @@ static void rs_tx_status(void *priv_r, struct ieee80211_supported_band *sband,
 {
 	int status;
 	u8 retries;
-	int rs_index, index = 0;
+	int rs_index, mac_index, index = 0;
 	struct iwl_lq_sta *lq_sta = priv_sta;
 	struct iwl_link_quality_cmd *table;
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
 	struct iwl_priv *priv = (struct iwl_priv *)priv_r;
-	struct ieee80211_hw *hw = priv->hw;
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 	struct iwl_rate_scale_data *window = NULL;
 	struct iwl_rate_scale_data *search_win = NULL;
+	enum mac80211_rate_control_flags mac_flags;
 	u32 tx_rate;
 	struct iwl_scale_tbl_info tbl_type;
 	struct iwl_scale_tbl_info *curr_tbl, *search_tbl;
@@ -876,16 +876,17 @@ static void rs_tx_status(void *priv_r, struct ieee80211_supported_band *sband,
 	rs_get_tbl_info_from_mcs(tx_rate, priv->band, &tbl_type, &rs_index);
 	if (priv->band == IEEE80211_BAND_5GHZ)
 		rs_index -= IWL_FIRST_OFDM_RATE;
+	mac_flags = info->status.rates[0].flags;
+	mac_index = info->status.rates[0].idx;
 
-	if ((info->status.rates[0].idx < 0) ||
-	    (tbl_type.is_SGI != !!(info->status.rates[0].flags & IEEE80211_TX_RC_SHORT_GI)) ||
-	    (tbl_type.is_ht40 != !!(info->status.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)) ||
-	    (tbl_type.is_dup != !!(info->status.rates[0].flags & IEEE80211_TX_RC_DUP_DATA)) ||
+	if ((mac_index < 0) ||
+	    (tbl_type.is_SGI != !!(mac_flags & IEEE80211_TX_RC_SHORT_GI)) ||
+	    (tbl_type.is_ht40 != !!(mac_flags & IEEE80211_TX_RC_40_MHZ_WIDTH)) ||
+	    (tbl_type.is_dup != !!(mac_flags & IEEE80211_TX_RC_DUP_DATA)) ||
 	    (tbl_type.ant_type != info->antenna_sel_tx) ||
-	    (!!(tx_rate & RATE_MCS_HT_MSK) != !!(info->status.rates[0].flags & IEEE80211_TX_RC_MCS)) ||
-	    (!!(tx_rate & RATE_MCS_GF_MSK) != !!(info->status.rates[0].flags & IEEE80211_TX_RC_GREEN_FIELD)) ||
-	    (hw->wiphy->bands[priv->band]->bitrates[rs_index].bitrate !=
-	     hw->wiphy->bands[info->band]->bitrates[info->status.rates[0].idx].bitrate)) {
+	    (!!(tx_rate & RATE_MCS_HT_MSK) != !!(mac_flags & IEEE80211_TX_RC_MCS)) ||
+	    (!!(tx_rate & RATE_MCS_GF_MSK) != !!(mac_flags & IEEE80211_TX_RC_GREEN_FIELD)) ||
+	    rs_index != mac_index) {
 		IWL_DEBUG_RATE(priv, "initial rate does not match 0x%x\n", tx_rate);
 		/* the last LQ command could failed so the LQ in ucode not
 		 * the same in driver sync up
@@ -2542,8 +2543,12 @@ static void rs_get_rate(void *priv_r, struct ieee80211_sta *sta, void *priv_sta,
 		if (lq_sta->last_rate_n_flags & RATE_MCS_GF_MSK)
 			info->control.rates[0].flags |= IEEE80211_TX_RC_GREEN_FIELD;
 	} else {
-		if (rate_idx < 0 || rate_idx > IWL_RATE_COUNT)
+		/* Check for invalid rates */
+		if ((rate_idx < 0) || (rate_idx >= IWL_RATE_COUNT_LEGACY) ||
+				((sband->band == IEEE80211_BAND_5GHZ) &&
+				 (rate_idx < IWL_FIRST_OFDM_RATE)))
 			rate_idx = rate_lowest_index(sband, sta);
+		/* On valid 5 GHz rate, adjust index */
 		else if (sband->band == IEEE80211_BAND_5GHZ)
 			rate_idx -= IWL_FIRST_OFDM_RATE;
 		info->control.rates[0].flags = 0;
@@ -2584,9 +2589,6 @@ static void rs_rate_init(void *priv_r, struct ieee80211_supported_band *sband,
 	struct ieee80211_conf *conf = &priv->hw->conf;
 	struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap;
 	struct iwl_lq_sta *lq_sta = priv_sta;
-	u16 mask_bit = 0;
-	int count;
-	int start_rate = 0;
 
 	lq_sta->flush_timer = 0;
 	lq_sta->supp_rates = sta->supp_rates[sband->band];
@@ -2661,20 +2663,10 @@ static void rs_rate_init(void *priv_r, struct ieee80211_supported_band *sband,
 	lq_sta->tx_agg_tid_en = IWL_AGG_ALL_TID;
 	lq_sta->drv = priv;
 
-	/* Find highest tx rate supported by hardware and destination station */
-	mask_bit = sta->supp_rates[sband->band];
-	count = sband->n_bitrates;
-	if (sband->band == IEEE80211_BAND_5GHZ) {
-		count += IWL_FIRST_OFDM_RATE;
-		start_rate = IWL_FIRST_OFDM_RATE;
-		mask_bit <<= IWL_FIRST_OFDM_RATE;
-	}
-
-	mask_bit = mask_bit & lq_sta->active_legacy_rate;
-	lq_sta->last_txrate_idx = 4;
-	for (i = start_rate; i < count; i++)
-		if (mask_bit & BIT(i))
-			lq_sta->last_txrate_idx = i;
+	/* Set last_txrate_idx to lowest rate */
+	lq_sta->last_txrate_idx = rate_lowest_index(sband, sta);
+	if (sband->band == IEEE80211_BAND_5GHZ)
+		lq_sta->last_txrate_idx += IWL_FIRST_OFDM_RATE;
 
 	rs_initialize_lq(priv, conf, sta, lq_sta);
 }
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rs.h b/drivers/net/wireless/iwlwifi/iwl-agn-rs.h
index 25050bf315a2..9fac530cfb7e 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-rs.h
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-rs.h
@@ -73,6 +73,7 @@ enum {
 	IWL_RATE_54M_INDEX,
 	IWL_RATE_60M_INDEX,
 	IWL_RATE_COUNT, /*FIXME:RS:change to IWL_RATE_INDEX_COUNT,*/
+	IWL_RATE_COUNT_LEGACY = IWL_RATE_COUNT - 1,	/* Excluding 60M */
 	IWL_RATE_COUNT_3945 = IWL_RATE_COUNT - 1,
 	IWL_RATE_INVM_INDEX = IWL_RATE_COUNT,
 	IWL_RATE_INVALID = IWL_RATE_COUNT,
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 0bfd4e918139..813582467ffb 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -439,12 +439,12 @@ static void iwlcore_init_hw_rates(struct iwl_priv *priv,
 {
 	int i;
 
-	for (i = 0; i < IWL_RATE_COUNT; i++) {
+	for (i = 0; i < IWL_RATE_COUNT_LEGACY; i++) {
 		rates[i].bitrate = iwl_rates[i].ieee * 5;
 		rates[i].hw_value = i; /* Rate scaling will work on indexes */
 		rates[i].hw_value_short = i;
 		rates[i].flags = 0;
-		if ((i > IWL_LAST_OFDM_RATE) || (i < IWL_FIRST_OFDM_RATE)) {
+		if ((i >= IWL_FIRST_CCK_RATE) && (i <= IWL_LAST_CCK_RATE)) {
 			/*
 			 * If CCK != 1M then set short preamble rate flag.
 			 */
@@ -480,7 +480,7 @@ int iwlcore_init_geos(struct iwl_priv *priv)
 	if (!channels)
 		return -ENOMEM;
 
-	rates = kzalloc((sizeof(struct ieee80211_rate) * (IWL_RATE_COUNT + 1)),
+	rates = kzalloc((sizeof(struct ieee80211_rate) * IWL_RATE_COUNT_LEGACY),
 			GFP_KERNEL);
 	if (!rates) {
 		kfree(channels);
@@ -492,7 +492,7 @@ int iwlcore_init_geos(struct iwl_priv *priv)
 	sband->channels = &channels[ARRAY_SIZE(iwl_eeprom_band_1)];
 	/* just OFDM */
 	sband->bitrates = &rates[IWL_FIRST_OFDM_RATE];
-	sband->n_bitrates = IWL_RATE_COUNT - IWL_FIRST_OFDM_RATE;
+	sband->n_bitrates = IWL_RATE_COUNT_LEGACY - IWL_FIRST_OFDM_RATE;
 
 	if (priv->cfg->sku & IWL_SKU_N)
 		iwlcore_init_ht_hw_capab(priv, &sband->ht_cap,
@@ -502,7 +502,7 @@ int iwlcore_init_geos(struct iwl_priv *priv)
 	sband->channels = channels;
 	/* OFDM & CCK */
 	sband->bitrates = rates;
-	sband->n_bitrates = IWL_RATE_COUNT;
+	sband->n_bitrates = IWL_RATE_COUNT_LEGACY;
 
 	if (priv->cfg->sku & IWL_SKU_N)
 		iwlcore_init_ht_hw_capab(priv, &sband->ht_cap,
@@ -1231,7 +1231,7 @@ static void iwl_set_rate(struct iwl_priv *priv)
 
 	for (i = 0; i < hw->n_bitrates; i++) {
 		rate = &(hw->bitrates[i]);
-		if (rate->hw_value < IWL_RATE_COUNT)
+		if (rate->hw_value < IWL_RATE_COUNT_LEGACY)
 			priv->active_rate |= (1 << rate->hw_value);
 	}
 
-- 
cgit v1.2.3


From b58ef214b7db57cfcbca0e1edae08566cdfd56b7 Mon Sep 17 00:00:00 2001
From: Daniel C Halperin <daniel.c.halperin@intel.com>
Date: Fri, 28 Aug 2009 09:44:46 -0700
Subject: iwlwifi: remove incorrect uses of ieee80211_get_tx_rate to prevent TX
 stall

Refactor and correct rate selection for outgoing transmitted
packets.

First, note that HT rates in the mac80211 rate table do not provide valid
indices when ieee80211_get_tx_rate is called; the check to see if we could to
abort a transmission early in iwl_tx_skb() would thus occasionally read invalid
memory and occasionally stall transmission (if the erroneous byte was 0xff).
We remove that code; the check wasn't valid anyway.

Second, iwl_tx_cmd_build_rate() also called ieee80211_get_tx_rate to be used
for sending management packets, which do not use the uCode station table.  This
patch refactors that function and adds comments to enhance legibility, replaces
the call to ieee80211_get_tx_rate() with a direct lookup, and adds error
handling in case the table entry is invalid.

Signed-off-by: Daniel C Halperin <daniel.c.halperin@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-tx.c | 111 +++++++++++++++++++---------------
 1 file changed, 62 insertions(+), 49 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-tx.c b/drivers/net/wireless/iwlwifi/iwl-tx.c
index 7bc9c0039f79..a7422e52d883 100644
--- a/drivers/net/wireless/iwlwifi/iwl-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-tx.c
@@ -566,62 +566,81 @@ static void iwl_tx_cmd_build_basic(struct iwl_priv *priv,
 static void iwl_tx_cmd_build_rate(struct iwl_priv *priv,
 			      struct iwl_tx_cmd *tx_cmd,
 			      struct ieee80211_tx_info *info,
-			      __le16 fc, int sta_id,
-			      int is_hcca)
+			      __le16 fc, int is_hcca)
 {
-	u32 rate_flags = 0;
+	u32 rate_flags;
 	int rate_idx;
-	u8 rts_retry_limit = 0;
-	u8 data_retry_limit = 0;
+	u8 rts_retry_limit;
+	u8 data_retry_limit;
 	u8 rate_plcp;
 
-	rate_idx = min(ieee80211_get_tx_rate(priv->hw, info)->hw_value & 0xffff,
-			IWL_RATE_COUNT - 1);
-
-	rate_plcp = iwl_rates[rate_idx].plcp;
-
-	rts_retry_limit = (is_hcca) ?
-	    RTS_HCCA_RETRY_LIMIT : RTS_DFAULT_RETRY_LIMIT;
-
-	if ((rate_idx >= IWL_FIRST_CCK_RATE) && (rate_idx <= IWL_LAST_CCK_RATE))
-		rate_flags |= RATE_MCS_CCK_MSK;
-
-
-	if (ieee80211_is_probe_resp(fc)) {
-		data_retry_limit = 3;
-		if (data_retry_limit < rts_retry_limit)
-			rts_retry_limit = data_retry_limit;
-	} else
-		data_retry_limit = IWL_DEFAULT_TX_RETRY;
-
+	/* Set retry limit on DATA packets and Probe Responses*/
 	if (priv->data_retry_limit != -1)
 		data_retry_limit = priv->data_retry_limit;
+	else if (ieee80211_is_probe_resp(fc))
+		data_retry_limit = 3;
+	else
+		data_retry_limit = IWL_DEFAULT_TX_RETRY;
+	tx_cmd->data_retry_limit = data_retry_limit;
 
+	/* Set retry limit on RTS packets */
+	rts_retry_limit = (is_hcca) ?  RTS_HCCA_RETRY_LIMIT :
+		RTS_DFAULT_RETRY_LIMIT;
+	if (data_retry_limit < rts_retry_limit)
+		rts_retry_limit = data_retry_limit;
+	tx_cmd->rts_retry_limit = rts_retry_limit;
 
+	/* DATA packets will use the uCode station table for rate/antenna
+	 * selection */
 	if (ieee80211_is_data(fc)) {
 		tx_cmd->initial_rate_index = 0;
 		tx_cmd->tx_flags |= TX_CMD_FLG_STA_RATE_MSK;
-	} else {
-		switch (fc & cpu_to_le16(IEEE80211_FCTL_STYPE)) {
-		case cpu_to_le16(IEEE80211_STYPE_AUTH):
-		case cpu_to_le16(IEEE80211_STYPE_DEAUTH):
-		case cpu_to_le16(IEEE80211_STYPE_ASSOC_REQ):
-		case cpu_to_le16(IEEE80211_STYPE_REASSOC_REQ):
-			if (tx_cmd->tx_flags & TX_CMD_FLG_RTS_MSK) {
-				tx_cmd->tx_flags &= ~TX_CMD_FLG_RTS_MSK;
-				tx_cmd->tx_flags |= TX_CMD_FLG_CTS_MSK;
-			}
-			break;
-		default:
-			break;
-		}
+		return;
+	}
+
+	/**
+	 * If the current TX rate stored in mac80211 has the MCS bit set, it's
+	 * not really a TX rate.  Thus, we use the lowest supported rate for
+	 * this band.  Also use the lowest supported rate if the stored rate
+	 * index is invalid.
+	 */
+	rate_idx = info->control.rates[0].idx;
+	if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS ||
+			(rate_idx < 0) || (rate_idx > IWL_RATE_COUNT_LEGACY))
+		rate_idx = rate_lowest_index(&priv->bands[info->band],
+				info->control.sta);
+	/* For 5 GHZ band, remap mac80211 rate indices into driver indices */
+	if (info->band == IEEE80211_BAND_5GHZ)
+		rate_idx += IWL_FIRST_OFDM_RATE;
+	/* Get PLCP rate for tx_cmd->rate_n_flags */
+	rate_plcp = iwl_rates[rate_idx].plcp;
+	/* Zero out flags for this packet */
+	rate_flags = 0;
 
-		priv->mgmt_tx_ant = iwl_toggle_tx_ant(priv, priv->mgmt_tx_ant);
-		rate_flags |= iwl_ant_idx_to_flags(priv->mgmt_tx_ant);
+	/* Set CCK flag as needed */
+	if ((rate_idx >= IWL_FIRST_CCK_RATE) && (rate_idx <= IWL_LAST_CCK_RATE))
+		rate_flags |= RATE_MCS_CCK_MSK;
+
+	/* Set up RTS and CTS flags for certain packets */
+	switch (fc & cpu_to_le16(IEEE80211_FCTL_STYPE)) {
+	case cpu_to_le16(IEEE80211_STYPE_AUTH):
+	case cpu_to_le16(IEEE80211_STYPE_DEAUTH):
+	case cpu_to_le16(IEEE80211_STYPE_ASSOC_REQ):
+	case cpu_to_le16(IEEE80211_STYPE_REASSOC_REQ):
+		if (tx_cmd->tx_flags & TX_CMD_FLG_RTS_MSK) {
+			tx_cmd->tx_flags &= ~TX_CMD_FLG_RTS_MSK;
+			tx_cmd->tx_flags |= TX_CMD_FLG_CTS_MSK;
+		}
+		break;
+	default:
+		break;
 	}
 
-	tx_cmd->rts_retry_limit = rts_retry_limit;
-	tx_cmd->data_retry_limit = data_retry_limit;
+	/* Set up antennas */
+	priv->mgmt_tx_ant = iwl_toggle_tx_ant(priv, priv->mgmt_tx_ant);
+	rate_flags |= iwl_ant_idx_to_flags(priv->mgmt_tx_ant);
+
+	/* Set the rate in the TX cmd */
 	tx_cmd->rate_n_flags = iwl_hw_set_rate_n_flags(rate_plcp, rate_flags);
 }
 
@@ -701,12 +720,6 @@ int iwl_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
 		goto drop_unlock;
 	}
 
-	if ((ieee80211_get_tx_rate(priv->hw, info)->hw_value & 0xFF) ==
-	     IWL_INVALID_RATE) {
-		IWL_ERR(priv, "ERROR: No TX rate available.\n");
-		goto drop_unlock;
-	}
-
 	fc = hdr->frame_control;
 
 #ifdef CONFIG_IWLWIFI_DEBUG
@@ -807,7 +820,7 @@ int iwl_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
 	iwl_dbg_log_tx_data_frame(priv, len, hdr);
 
 	/* set is_hcca to 0; it probably will never be implemented */
-	iwl_tx_cmd_build_rate(priv, tx_cmd, info, fc, sta_id, 0);
+	iwl_tx_cmd_build_rate(priv, tx_cmd, info, fc, 0);
 
 	iwl_update_stats(priv, true, fc, len);
 	/*
-- 
cgit v1.2.3


From 31513be8a06874eb359908b7b735929837831a9a Mon Sep 17 00:00:00 2001
From: Daniel C Halperin <daniel.c.halperin@intel.com>
Date: Fri, 28 Aug 2009 09:44:47 -0700
Subject: iwlwifi: use iwl_hwrate_get_mac80211_idx where appropriate

For HT packets, mac80211 expects the rate_idx to be an MCS number, which is the
lower byte of rate_n_flags.  However, iwl_hwrate_to_plcp_idx takes the MCS
number and reduces it down to the range 0-8 (6 to 60 Mbps), removing the bits
that signify multiply streams, HT40 Duplicate mode, or unequal modulation.
This version is used for various internal purposes through the driver.

Add the function iwl_hwrate_get_mac80211_idx, an alternate version which takes
the rate and the band and returns the mac80211 index (MCS, for HT packets, and
PLCP rate, for legacy packets).

Signed-off-by: Daniel C Halperin <daniel.c.halperin@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-agn-rs.c | 10 ++++++++--
 drivers/net/wireless/iwlwifi/iwl-core.c   | 27 ++++++++++++++++++++++-----
 drivers/net/wireless/iwlwifi/iwl-core.h   |  1 +
 drivers/net/wireless/iwlwifi/iwl-rx.c     |  9 ++++-----
 4 files changed, 35 insertions(+), 12 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
index 8239e5508cac..40b207aa8fef 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
@@ -878,6 +878,12 @@ static void rs_tx_status(void *priv_r, struct ieee80211_supported_band *sband,
 		rs_index -= IWL_FIRST_OFDM_RATE;
 	mac_flags = info->status.rates[0].flags;
 	mac_index = info->status.rates[0].idx;
+	/* For HT packets, map MCS to PLCP */
+	if (mac_flags & IEEE80211_TX_RC_MCS) {
+		mac_index &= RATE_MCS_CODE_MSK;	/* Remove # of streams */
+		if (mac_index >= (IWL_RATE_9M_INDEX - IWL_FIRST_OFDM_RATE))
+			mac_index++;
+	}
 
 	if ((mac_index < 0) ||
 	    (tbl_type.is_SGI != !!(mac_flags & IEEE80211_TX_RC_SHORT_GI)) ||
@@ -886,8 +892,8 @@ static void rs_tx_status(void *priv_r, struct ieee80211_supported_band *sband,
 	    (tbl_type.ant_type != info->antenna_sel_tx) ||
 	    (!!(tx_rate & RATE_MCS_HT_MSK) != !!(mac_flags & IEEE80211_TX_RC_MCS)) ||
 	    (!!(tx_rate & RATE_MCS_GF_MSK) != !!(mac_flags & IEEE80211_TX_RC_GREEN_FIELD)) ||
-	    rs_index != mac_index) {
-		IWL_DEBUG_RATE(priv, "initial rate does not match 0x%x\n", tx_rate);
+	    (rs_index != mac_index)) {
+		IWL_DEBUG_RATE(priv, "initial rate %d does not match %d (0x%x)\n", mac_index, rs_index, tx_rate);
 		/* the last LQ command could failed so the LQ in ucode not
 		 * the same in driver sync up
 		 */
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 813582467ffb..acfd7b40afb8 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -96,7 +96,6 @@ EXPORT_SYMBOL(iwl_rates);
 void iwl_hwrate_to_tx_control(struct iwl_priv *priv, u32 rate_n_flags,
 				  struct ieee80211_tx_info *info)
 {
-	int rate_index;
 	struct ieee80211_tx_rate *r = &info->control.rates[0];
 
 	info->antenna_sel_tx =
@@ -111,10 +110,7 @@ void iwl_hwrate_to_tx_control(struct iwl_priv *priv, u32 rate_n_flags,
 		r->flags |= IEEE80211_TX_RC_DUP_DATA;
 	if (rate_n_flags & RATE_MCS_SGI_MSK)
 		r->flags |= IEEE80211_TX_RC_SHORT_GI;
-	rate_index = iwl_hwrate_to_plcp_idx(rate_n_flags);
-	if (info->band == IEEE80211_BAND_5GHZ)
-		rate_index -= IWL_FIRST_OFDM_RATE;
-	r->idx = rate_index;
+	r->idx = iwl_hwrate_to_mac80211_idx(rate_n_flags, info->band);
 }
 EXPORT_SYMBOL(iwl_hwrate_to_tx_control);
 
@@ -149,6 +145,27 @@ int iwl_hwrate_to_plcp_idx(u32 rate_n_flags)
 }
 EXPORT_SYMBOL(iwl_hwrate_to_plcp_idx);
 
+int iwl_hwrate_to_mac80211_idx(u32 rate_n_flags, enum ieee80211_band band)
+{
+	int idx = 0;
+	int band_offset = 0;
+
+	/* HT rate format: mac80211 wants an MCS number, which is just LSB */
+	if (rate_n_flags & RATE_MCS_HT_MSK) {
+		idx = (rate_n_flags & 0xff);
+		return idx;
+	/* Legacy rate format, search for match in table */
+	} else {
+		if (band == IEEE80211_BAND_5GHZ)
+			band_offset = IWL_FIRST_OFDM_RATE;
+		for (idx = band_offset; idx < IWL_RATE_COUNT_LEGACY; idx++)
+			if (iwl_rates[idx].plcp == (rate_n_flags & 0xFF))
+				return idx - band_offset;
+	}
+
+	return -1;
+}
+
 u8 iwl_toggle_tx_ant(struct iwl_priv *priv, u8 ant)
 {
 	int i;
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h
index 62d90364b61d..c04d2a270819 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.h
+++ b/drivers/net/wireless/iwlwifi/iwl-core.h
@@ -423,6 +423,7 @@ int iwl_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force);
 void iwl_hwrate_to_tx_control(struct iwl_priv *priv, u32 rate_n_flags,
 			      struct ieee80211_tx_info *info);
 int iwl_hwrate_to_plcp_idx(u32 rate_n_flags);
+int iwl_hwrate_to_mac80211_idx(u32 rate_n_flags, enum ieee80211_band band);
 
 u8 iwl_rate_get_lowest_plcp(struct iwl_priv *priv);
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-rx.c b/drivers/net/wireless/iwlwifi/iwl-rx.c
index e34d3fcb6c3d..8150c5c3a16b 100644
--- a/drivers/net/wireless/iwlwifi/iwl-rx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-rx.c
@@ -962,6 +962,9 @@ void iwl_rx_reply_rx(struct iwl_priv *priv,
 		return;
 	}
 
+	/* This will be used in several places later */
+	rate_n_flags = le32_to_cpu(phy_res->rate_n_flags);
+
 	/* rx_status carries information about the packet to mac80211 */
 	rx_status.mactime = le64_to_cpu(phy_res->timestamp);
 	rx_status.freq =
@@ -969,10 +972,7 @@ void iwl_rx_reply_rx(struct iwl_priv *priv,
 	rx_status.band = (phy_res->phy_flags & RX_RES_PHY_FLAGS_BAND_24_MSK) ?
 				IEEE80211_BAND_2GHZ : IEEE80211_BAND_5GHZ;
 	rx_status.rate_idx =
-		iwl_hwrate_to_plcp_idx(le32_to_cpu(phy_res->rate_n_flags));
-	if (rx_status.band == IEEE80211_BAND_5GHZ)
-		rx_status.rate_idx -= IWL_FIRST_OFDM_RATE;
-
+		iwl_hwrate_to_mac80211_idx(rate_n_flags, rx_status.band);
 	rx_status.flag = 0;
 
 	/* TSF isn't reliable. In order to allow smooth user experience,
@@ -1034,7 +1034,6 @@ void iwl_rx_reply_rx(struct iwl_priv *priv,
 		rx_status.flag |= RX_FLAG_SHORTPRE;
 
 	/* Set up the HT phy flags */
-	rate_n_flags = le32_to_cpu(phy_res->rate_n_flags);
 	if (rate_n_flags & RATE_MCS_HT_MSK)
 		rx_status.flag |= RX_FLAG_HT;
 	if (rate_n_flags & RATE_MCS_HT40_MSK)
-- 
cgit v1.2.3


From 4c561a02291326c50f9b1f647eae891af9d1f3b2 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Fri, 28 Aug 2009 09:44:48 -0700
Subject: iwlwifi: use sleep interval succession

Some concerns were raised about the automatic adjustment
of sleep intervals to all the same, potentially high,
value, and I can imagine the hardware behaving better
when we don't ask too much of it.

So let's convert to use a succession of sleep levels
when requesting to go to deeper sleeps (which can only
happen with large DTIM intervals), using the succession
values from power level three, which have the benefit of
also having been tested extensively already.

As a result, the automatic sleep level adjustment will
now be mostly equivalent to power level three, except
for the RX/TX timeouts and possibly using smaller sleep
vectors to account for networking latency.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-power.c | 22 +++++++++++++++++++++-
 1 file changed, 21 insertions(+), 1 deletion(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-power.c b/drivers/net/wireless/iwlwifi/iwl-power.c
index 0b16841f45f4..081a7ea40c6c 100644
--- a/drivers/net/wireless/iwlwifi/iwl-power.c
+++ b/drivers/net/wireless/iwlwifi/iwl-power.c
@@ -216,8 +216,27 @@ static void iwl_power_fill_sleep_cmd(struct iwl_priv *priv,
 				     struct iwl_powertable_cmd *cmd,
 				     int dynps_ms, int wakeup_period)
 {
+	/*
+	 * These are the original power level 3 sleep successions. The
+	 * device may behave better with such succession and was also
+	 * only tested with that. Just like the original sleep commands,
+	 * also adjust the succession here to the wakeup_period below.
+	 * The ranges are the same as for the sleep commands, 0-2, 3-9
+	 * and >10, which is selected based on the DTIM interval for
+	 * the sleep index but here we use the wakeup period since that
+	 * is what we need to do for the latency requirements.
+	 */
+	static const u8 slp_succ_r0[IWL_POWER_VEC_SIZE] = { 2, 2, 2, 2, 2 };
+	static const u8 slp_succ_r1[IWL_POWER_VEC_SIZE] = { 2, 4, 6, 7, 9 };
+	static const u8 slp_succ_r2[IWL_POWER_VEC_SIZE] = { 2, 7, 9, 9, 0xFF };
+	const u8 *slp_succ = slp_succ_r0;
 	int i;
 
+	if (wakeup_period > IWL_DTIM_RANGE_0_MAX)
+		slp_succ = slp_succ_r1;
+	if (wakeup_period > IWL_DTIM_RANGE_1_MAX)
+		slp_succ = slp_succ_r2;
+
 	memset(cmd, 0, sizeof(*cmd));
 
 	cmd->flags = IWL_POWER_DRIVER_ALLOW_SLEEP_MSK |
@@ -230,7 +249,8 @@ static void iwl_power_fill_sleep_cmd(struct iwl_priv *priv,
 	cmd->tx_data_timeout = cpu_to_le32(1000 * dynps_ms);
 
 	for (i = 0; i < IWL_POWER_VEC_SIZE; i++)
-		cmd->sleep_interval[i] = cpu_to_le32(wakeup_period);
+		cmd->sleep_interval[i] =
+			cpu_to_le32(min_t(int, slp_succ[i], wakeup_period));
 
 	IWL_DEBUG_POWER(priv, "Automatic sleep command\n");
 }
-- 
cgit v1.2.3


From b57d46aa0db87b6349737e7b110ebe48ee14c143 Mon Sep 17 00:00:00 2001
From: Reinette Chatre <reinette.chatre@intel.com>
Date: Fri, 28 Aug 2009 09:44:49 -0700
Subject: iwlwifi: fix situation in which debug message is printed

3945 does not have update_chain_flags defined and because if this we always
see the debug message that does not apply to it. Add a check to be specific
about what is actually happening.

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-power.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl-power.c b/drivers/net/wireless/iwlwifi/iwl-power.c
index 081a7ea40c6c..4ec6a8307cc6 100644
--- a/drivers/net/wireless/iwlwifi/iwl-power.c
+++ b/drivers/net/wireless/iwlwifi/iwl-power.c
@@ -321,7 +321,7 @@ int iwl_power_update_mode(struct iwl_priv *priv, bool force)
 			if (priv->cfg->ops->lib->update_chain_flags &&
 			    update_chains)
 				priv->cfg->ops->lib->update_chain_flags(priv);
-			else
+			else if (priv->cfg->ops->lib->update_chain_flags)
 				IWL_DEBUG_POWER(priv,
 					"Cannot update the power, chain noise "
 					"calibration running: %d\n",
-- 
cgit v1.2.3


From af472a953ef23d6b9fe717486974d7caff3fa194 Mon Sep 17 00:00:00 2001
From: Reinette Chatre <reinette.chatre@intel.com>
Date: Fri, 28 Aug 2009 09:58:50 -0700
Subject: iwl3945: reduce debug noise when default debug flags used

Significant literature suggests users use debug flags 0x43fff - this causes
the debug flags to be set that causes information to be printed for every
received frame - including beacons. In the best case it fills up the logs,
at worst it slows driver down and causes failures due to timeouts.

In the RX handler, print debugging only if user requested RX debugging.

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl3945-base.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi')

diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index 34790413eadd..2238c9f2018c 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -1373,7 +1373,7 @@ static void iwl3945_rx_handle(struct iwl_priv *priv)
 		fill_rx = 1;
 	/* Rx interrupt, but nothing sent from uCode */
 	if (i == r)
-		IWL_DEBUG(priv, IWL_DL_RX | IWL_DL_ISR, "r = %d, i = %d\n", r, i);
+		IWL_DEBUG_RX(priv, "r = %d, i = %d\n", r, i);
 
 	while (i != r) {
 		rxb = rxq->queue[i];
@@ -1404,15 +1404,13 @@ static void iwl3945_rx_handle(struct iwl_priv *priv)
 		 *   handle those that need handling via function in
 		 *   rx_handlers table.  See iwl3945_setup_rx_handlers() */
 		if (priv->rx_handlers[pkt->hdr.cmd]) {
-			IWL_DEBUG(priv, IWL_DL_HCMD | IWL_DL_RX | IWL_DL_ISR,
-				"r = %d, i = %d, %s, 0x%02x\n", r, i,
+			IWL_DEBUG_RX(priv, "r = %d, i = %d, %s, 0x%02x\n", r, i,
 				get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd);
 			priv->rx_handlers[pkt->hdr.cmd] (priv, rxb);
 			priv->isr_stats.rx_handlers[pkt->hdr.cmd]++;
 		} else {
 			/* No handling needed */
-			IWL_DEBUG(priv, IWL_DL_HCMD | IWL_DL_RX | IWL_DL_ISR,
-				"r %d i %d No handler needed for %s, 0x%02x\n",
+			IWL_DEBUG_RX(priv, "r %d i %d No handler needed for %s, 0x%02x\n",
 				r, i, get_cmd_string(pkt->hdr.cmd),
 				pkt->hdr.cmd);
 		}
-- 
cgit v1.2.3